Patent Description:
Small-molecule covalent inhibitors, also known as irreversible inhibitors, are a class of inhibitors that exert their biological functions by irreversible binding of covalent bonds to target protein residues. Covalent inhibitor drugs have made important contributions to human health over the past few decades. Relative to non-covalent inhibitors, covalent inhibitors enhance affinity to targets by covalent bonding to target proteins, which is the underlying cause of the high bioactivity of the covalent inhibitors. In recent years, due to generation of resistance to non-covalent targeting anti-tumor drugs, especially to a large number of kinase-targeted tinib drugs, people have paid more attention to covalent inhibitor drugs again. In recent years, many large pharmaceutical companies have developed covalent inhibitors for specific enzyme targets. Currently, some covalent inhibitors, including afatinib, canertinib, and neratinib, have entered clinical trials. Among them, Afatinib was officially approved by the US FDA on July <NUM>, <NUM> for the treatment of metastatic non-small cell lung cancer with epidermal growth factor receptor (EGFR) gene mutation, becoming the first FDA-approved new irreversible inhibitor drug for treatment of lung cancer. In addition, antiviral covalent drugs have also been a research hotspot in recent years, and great progress has been made. For example, in <NUM>, FDA approved two anti-hepatitis C virus covalent inhibitory drugs, namely, Telaprevir and Boceprevir. These studies demonstrate that irreversible inhibitors are effective for the treatment of diseases.

Bruton's tyrosine kinase (Btk), a member of the Tec family of non-receptor tyrosine kinases, is a key signal kinase expressed in all hematopoietic cell types except T lymphocytes and natural killer cells. Btk plays a crucial role in the signaling pathways of B cells that link cell surface B-cell receptor (BCR) and stimulatethedownstream cell responses. Btk is a key regulator, affecting B cell development, activation, signaling, and survival. In addition, Bkt plays a role in signaling pathways of numerous other hematopoietic cells, such as Toll like receptor (TLR)- and cytokine receptor-mediated TNF-α production in macrophages, Immunoglobulin E receptor (FcεR1) signaling in mast cells, signaling for inhibition of Fas/APO-<NUM> apoptosis in B-lineage lymphoid cells, and collagen-stimulated platelet aggregation. For example, see in <NPL>, <NPL>. Recent studies have shown that the Btk signaling pathway is a new hotspot in the current clinical treatment researches of non-Hodgkin's lymphoma (NHL), especially chronic lymphocytic leukemia (CLL), B-cell lymphoma and autoimmune diseases. Small-molecule Btk inhibitors inhibit Btkautophosphorylation by binding to Btk by acting on the BCR signaling pathway, thereby preventing Btk activation and further blocking cell conduction and inducing apoptosis. The release of the Btk inhibitor, ibrutinib, has been considered as a "breakthrough" new drug by FDA, and its research and development prospects are broad. However, in recent year's treatment, it has gradually found that ibrutinib has bleeding-related side effects, and literature studies suggest that it may be related to the poor selectivity of ibutinib, especially the related activities of TEC kinases. In addition, in the FDA application documents of ibrutinib, some review experts stated that the IC<NUM> of its hERG channel blocking activity is low (IC<NUM> = <NUM>), and there is a risk of cardiac toxic and side effects. Therefore, there is an urgent need to develop a more efficient class of selective BTK inhibitors for the treatment of related diseases.

A class of BTK irreversible inhibitors and their optical isomers or pharmaceutically acceptable salts or solvates, are reported in the applicant's prior patent documents (<CIT> and<CIT>), with I and II in the following formula as represent compounds. Through further research, we found a class of compounds with high kinase selectivity, low hERG inhibitory activity and BTK inhibitors with good pharmacokinetic properties, which are expected to further reduce the risk of bleeding, rash, cardiac toxic side effects and so on.

The object of the present invention is to provide a novel and unreported BTK inhibitory compound as specified in any of claims <NUM>-<NUM> having efficient BTK inhibitory activity, high specificity (good kinase selectivity) and low HERG channel blocking activity, and their optical isomers thereof or pharmaceutically acceptable salts or solvates thereof.

The present invention further provides a pharmaceutical composition as specified in claim <NUM> comprising the compound and their optical isomers, or the pharmaceutically acceptable salts or solvates.

The present invention further provides a pharmaceutical preparation as specified in claim <NUM> comprising the compound and their optical isomers, or the pharmaceutically acceptable salts or solvates.

The present invention also provides a compound, and their optical isomers, or the pharmaceutically acceptable salts or solvates for use as specified in claim <NUM> in a method for treating proliferation related diseases, cancers, autoimmune diseases or rheumatoid arthritis and lupus erythematosus, alone or in combination with other drugs.

The present invention adopts the following technical solutions:
The claimed compound of the present invention has a structure of Formula II or Formula II':
<CHM>.

Another claimed compound of the present invention has a structure of Formula III or Formula III'or Formula III":
<CHM>.

Still further, another claimed compound of the present invention has a structure of Formula IV or Formula IV'or Formula IV":
<CHM>.

Still further, another claimed compound of the present invention has a structure of Formula V or Formula V' or Formula V":
<CHM>.

Still further, another claimed compound of the present invention has a structure of Formula VI or Formula VI' or Formula VI":
<CHM>.

Still further, another claimed compound has a structure of Formula VI-a or Formula VI-a' or Formula VI-a":
<CHM>.

As a further claimed compound, the Bruton's tyrosine kinase inhibitor is of the following formula:
<CHM>
where each Rg is independently H, halogen, -CF<NUM>H, -CF<NUM>, C1-C3 alkyl, or C1-C3 alkoxy, preferably H, F, Cl, methyl, or methoxy; Ri is independently selected from H, halogen, C1-C3 alkyl, -CF<NUM>, or -CF<NUM>H, preferably from H or F.

Still further, according to the structure of Formula VI or Formula VI' or Formula VI", the another claimed compound of the present invention has a structure of Formula VII or Formula VII' or Formula VII":
<CHM>.

Still further, another claimed compound of the present invention has a structure of Formula VIII or Formula VIII' or Formula VIII":
<CHM>.

Preferably, the Bruton's tyrosine kinase inhibitors are preferably the following specific compounds:.

and their optical isomers, or pharmaceutically acceptable salts or solvates. Preferably, the compoundsand representative numerals are as follows:.

and their optical isomers, or pharmaceutically acceptable salts or solvates.

The salts of the compounds of the present invention may be prepared by the present invention using methods well known to those skilled in the art. The salts may be organic acid salts, inorganic acid salts, etc.. The organic acid salts include citrates, fumarates, oxalates, malates, lactates, camphor sulfonates, p-toluenesulfonates, and mesylates. The inorganic acid salts include hydrohalides, sulfates, phosphates, and nitrates. For example, with lower alkylsulfonic acids such as methanesulfonic acid or trifluoromethanesulfonic acid, mesylate salts or triflate salts of the compounds may be formed; with arylsulfonic acids such as benzenesulfonic acid or p-toluenesulfonic acid, p-toluenesulfonates or besylates of the compounds may be formed; with organic carboxylic acids such as acetic acid, fumaric acid, tartaric acid, oxalic acid, maleic acid, malic acid, succinic acid or citric acid, corresponding salts of the compounds may be formed; with amino acids such as glutamic acid or aspartic acid, glutamates or aspartates of the compounds may be formed. Corresponding salts of the compounds may also be formed with inorganic acids such as hydrohalic acids (e.g., hydrofluoric acid, hydrobromic acid, hydroiodic acid, hydrochloric acid), nitric acid, carbonic acid, sulfuric acid or phosphoric acid.

The second object of the present invention is to provide a pharmaceutical composition, comprising one or more of the claimed compounds of any one of the above-mentioned technical solutions. The pharmaceutical composition of the present invention may comprise one or more of the compounds described in any one of the above technical solutions and other compounds, or may comprise one or more of the compounds of any one of the above-mentioned technical solutions.

The present invention provides a pharmaceutical preparation comprising at least one active component, and the active component(s) is/are one or more of the claimed compounds of any one of the above-mentioned technical solutions. The pharmaceutical preparation comprises at least one active component and one or more pharmaceutically acceptable carriers or excipients. The active component(s) may be any one or more of the BTK inhibitor compounds of the present invention, optical isomers of the compounds, pharmaceutically acceptable salts of the compounds or the optical isomers, and solvates of the compounds or the optical isomers.

The carriers include conventional diluents, excipients, fillers, binders, wetting agents, disintegrating agents, absorption enhancers, surfactants, adsorption carriers, and lubricants in the pharmaceutical field, and an odorant, a sweetener and the like may also be added if necessary.

The drug of the present invention may be prepared into various forms such as tablets, powders, granules, capsules, oral liquids and injectable preparations, and all the drugs in the above forms can be prepared according to a conventional method in the pharmaceutical field.

In another aspect, the present invention provides claimed compounds of Formula II to Formula VIII, Formula II' to Formula VIII', Formula III" to Formula VIII", and Formula VI-a Formula VI-a' and Formula VI-a" and optical isomers of the compounds, or pharmaceutically acceptable salts or solvates of the compounds and the optical isomers for use in a method of of treatment of cell proliferation related diseases, cancers, autoimmune diseases or rheumatoid arthritis and lupus erythematosus, alone or in combination with other drugs.

In a non-claimed solution, provided by the present invention is a method for inhibiting Bruton's tyrosine kinase activity of a subject by administering to the subject in need of a composition comprising a therapeutically effective amount of at least one of the compounds, where the compounds has a structure of Formula I to Formula III and Formula I' to Formula VIII, Formula III" to Formula VIII", and Formula VI-a, Formula VI-a' and Formula VI-a". In some embodiments, the subject in need is suffering from an autoimmune disease, such as inflammatory bowel disease, arthritis, lupus, rheumatoid arthritis, psoriatic arthritis, osteoarthritis, Still's disease, juvenile arthritis, diabetes, myasthenia gravis, Hashimoto's thyroiditis, Ord's thyroiditis, Graves'disease, Sjögren's syndrome, multiple sclerosis, Guillain-Barré syndrome, acute disseminated encephalomyelitis, Addison's disease, visual ocular palsy-myoclonus Syndrome, mandatory spondylitis, antiphospholipid antibody syndrome, aplastic anemia, autoimmune hepatitis, coeliac disease, Goodpasture's syndrome, idiopathic thrombocytopenic purpura , optic neuritis, scleroderma, primary biliary cirrhosis, Reiter's syndrome, Takayasu's arteritis, temporal arteritis, warm autoimmune hemolytic anemia, Wegener's granulomatosis, psoriasis, generalized hair removal, Behcet's disease, chronic fatigue, familial dysautonomia, endometriosis, interstitial cystitis, neuromuscular rigidity, scleroderma or vulvar pain, and chronic graft-versus-host disease.

In a further embodiment, the subject in need has a cancer. In an implementation manner, the cancer is a B cell proliferation related disease, such as diffuse large B-cell lymphoma, follicular lymphoma, chronic lymphocytic lymphoma, chronic lymphocytic leukemia, B-cell pro-lymphocytic leukemia, Lymphocyte lymphoma/Waldenströmmacroglobulinemia, splenic marginal lymphoma, plasma cell myeloma, plasmacytoma, extranodal marginal zone B-cell lymphoma, lymph node marginal zone B cell lymphoma, mantle cell lymphoma, mediastinum (thymus) large B-cell lymphoma, intravascular large B-cell lymphoma, primary exudative lymphoma, Burkitt lymphomalleukemia or lymphomatoid granulomatous disease.

The present invention further provides use of the compounds of the present invention or pharmaceutically acceptable salts thereof in preparation of a BTK inhibitor, in particular for the preparation of a drug for treatment of cell proliferation related diseases. The cell proliferation related diseases include cancers. In other words, the present invention also provides compounds of Formula II to Formula VIII, Formula II' to Formula VIII', Formula III" to Formula VIII", and Formula VI-a Formula VI-a' and Formula VI-a" and optical isomers of the compounds, or pharmaceutically acceptable salts or solvates of the compounds and the optical isomers alone or in combination with other drugs for use in a method of treating proliferation related diseases such as cancers. Antitumor drugs which may be used in combination with the compounds provided by the present invention or pharmaceutically acceptable salts of the compound include, but are not limited to, at least one of the following classes: mitotic inhibitors (such as vinblastine, vindesine, and vinorelbine); tubulin decomposition inhibitors (such as Taxol); alkylating agents (such as cisplatin, carboplatin and cyclophosphamide); antimetabolites (such as <NUM>-fluorouracil, tegafur, methotrexate, cytarabine and Hydroxyurea); insertable antibiotics (such as arrhenone, mitomycin and bleomycin); enzymes (such as aspartate); topoisomerase inhibitors (such as etoricin and camptothecin); and biological response modifier (such as interferon).

It is demonstrated through experiments by the inventors of the present invention that the compounds of the present invention have anti-proliferation and inhibitory effects on tumor cell strains such as A549, MINO, OCI-LY10 and TMD-<NUM>, and shows an excellent anti-tumor activity in tumor models such as Mino subcutaneous xenografts, and can be applied to drugs for treating solid tumors or leukemia associated with cell proliferation in humans or animals.

It is demonstrated through experiments by the inventors of the present invention that the compounds of the present invention have excellent kinase selectivity.

It is demonstrated through experiments by the inventors of the present invention that the compounds of the present invention have low hERG channel blocking activity.

It is demonstrated through experiments by the inventors of the present invention that the compounds of the present invention have good pharmacokinetic properties and can be applied to the oral treatment of solid tumors or leukemia associated with cell proliferation or autoimmune diseases in humans or animals.

The embodiments of the present invention are described below by way of examples, and those skilled in the art will understand that modifications or substitutions of the corresponding technical features, made according to the teachings of the prior art, are still within the scope of the present invention.

Operation steps: <NUM>-iodo-<NUM>-amino-<NUM>-pyrazolo[<NUM>,<NUM>-d]pyrimidine (<NUM>, <NUM>. 7mmol), (S)-<NUM>-Boc-<NUM>-hydroxypiperidine (<NUM>, <NUM>. 4mmol), and triphenylphosphine PPh<NUM> (<NUM>, <NUM>. 1mmol) were placed in a <NUM> round-bottom flask, a magnet was placed, <NUM> of THF was added, and the solution was stirred at room temperature in a nitrogen atmosphere; diisopropylazodicarboxylate DIAD (<NUM>, <NUM>. 1mmol) was dissolved in about <NUM> of THF, and the solution was slowly added dropwise to the reaction system, and then the reaction was further carried out for about <NUM> hours. According to the results of TLC (thin layer chromatography), the reaction was stopped and reduced-pressure concentration was carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent to obtain white solid 1a with a yield of <NUM>%. <NUM> NMR(δ, CDCl<NUM>): <NUM> (s, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (q, J= <NUM>, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> (s, <NUM>). LC-ESI-MS: <NUM> [M+H]. Chiral HPLC: <NUM>% ee.

Operation steps: <NUM>-iodo-<NUM>-amino-<NUM>-pyrazolo[<NUM>,<NUM>-d]pyrimidine (<NUM>, <NUM>. 7mmol), (R)-<NUM>-Boc-<NUM>-hydroxypiperidine (<NUM>, <NUM>. 4mmol), and triphenylphosphine PPh<NUM> (<NUM>, <NUM>. 1mmol) were placed in a <NUM> round-bottom flask, a magnet was placed, <NUM> of THF was added, and the solution was stirred at room temperature in a nitrogen atmosphere. DIAD (<NUM>, <NUM>. 1mmol) was dissolved in about <NUM> of THF, and the solution was slowly added dropwise to the reaction system, and then the reaction was further carried out for about <NUM> hours. According to the results of TLC, the reaction was stopped and reduced-pressure concentration was carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent to obtain white solid 1b with a yield of <NUM>%. LC-ESI-MS: <NUM> [M+H]. Chiral HPLC: <NUM>% ee.

Operation steps: <NUM>-iodo-<NUM>-amino-<NUM>-pyrazolo[<NUM>,<NUM>-d]pyrimidine (<NUM>, <NUM>. 5mmol), (S)-<NUM>-Boc-<NUM>-hydroxytetrahydropyrrole (<NUM>, 39mmol), and triphenylphosphine PPh<NUM> (<NUM>, <NUM>. 3mmol) were placed in a <NUM> round-bottom flask, a magnet was placed, <NUM> of THF was added, and the solution was stirred at room temperature in a nitrogen atmosphere; DIAD (<NUM>, <NUM>. 3mmol) was dissolved in about <NUM> of THF, and the solution was slowly added dropwise to the reaction system, and then the reaction was further carried out for about <NUM> hours. According to the results of TLC, the reaction was stopped and reduced-pressure concentration was carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent to obtain white solid 2a with a yield of <NUM>%. LC-ESI-MS: <NUM> [M+H]. Chiral HPLC: <NUM>% ee.

Operation steps: <NUM>-iodo-<NUM>-amino-<NUM>-pyrazolo[<NUM>,<NUM>-d]pyrimidine (<NUM>, <NUM>. 5mmol), (R)-<NUM>-Boc-<NUM>-hydroxytetrahydropyrrole (<NUM>, 39mmol), and triphenylphosphine PPh<NUM> (<NUM>, <NUM>. 3mmol) were placed in a <NUM> round-bottom flask, a magnet was placed, <NUM> of THF was added, and the solution was stirred at room temperature in a nitrogen atmosphere. DIAD (<NUM>, <NUM>. 3mmol) was dissolved in about <NUM> of THF, and the solution was slowly added dropwise to the reaction system, and then the reaction was further carried out for about <NUM> hours; according to the results of TLC, the reaction was stopped and reduced-pressure concentration is carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent to obtain white solid 2b with a yield of <NUM>%. LC-ESI-MS: <NUM> [M+H]. Chiral HPLC: <NUM>% ee.

Operation steps (with intermediate 3a as an example): <NUM>,<NUM>-dibromopyridine (<NUM>. 5mmol), phenol (<NUM>. 6mmol), CuI (<NUM>. 15mmol) and Cs<NUM>CO<NUM> (92mmol) were placed in a <NUM> dried flask; <NUM> of DMSO was added; TMEDA (<NUM>. 15mmol) was then added; and the solution was heated to <NUM> (the temperature unit in the present invention was in degree Celsius (°C) unless otherwise specified) in an Ar atmosphere to carry out a reaction for about <NUM> hours until TLC transformation was complete. After the reaction system was cooled to room temperature, a large amount of ethyl acetate was added, rinsing with water was carried out four times, extraction with ethyl acetate was carried out twice, EA (ethyl acetate) phases were combined and rinsed with a saturated NaCl solution, and an organic phase was then dried, filtered and spin-dried, thus obtaining a brown oily product.

Intermediate <NUM>-bromo-<NUM>-phenoxypyridine 3a (R<NUM>=H), yield <NUM>%, <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>). LC-ESI-MS: <NUM> [M+H].

Intermediate 3b (<NUM>-bromo-<NUM>-(<NUM>-fluoro-phenoxy)pyridine, R<NUM> = <NUM>-fluoro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-fluorophenol (<NUM>. 46mmol), CuI (<NUM>. 62mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate 3c (<NUM>-bromo-<NUM>-(<NUM>-fluoro-phenoxy)pyridine, R<NUM> = <NUM>-fluoro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-fluorophenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate 3d (<NUM>-bromo-<NUM>-(<NUM>-fluoro-phenoxy)pyridine, R<NUM> = <NUM>-fluoro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-fluorophenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate 3e (<NUM>-bromo-(<NUM>-chloro-phenoxy)pyridine, R<NUM> = <NUM>-chloro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-chlorophenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%. <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd ,J = <NUM>, <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>). LC-ESI -MS: <NUM> [M+H].

Intermediate 3f (<NUM>-bromo-<NUM>-(<NUM>,<NUM>-difluoro-phenoxy)pyridine, R<NUM> = <NUM>,<NUM>-difluoro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>,<NUM>-difluorophenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (<NUM>-bromo-(<NUM>,<NUM>-difluoro-phenoxy)pyridine, R<NUM> = <NUM>,<NUM>-difluoro): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>,<NUM>-difluorophenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate 3i (<NUM>-bromo-(<NUM>-methyl-phenoxy)pyridine, R<NUM> = <NUM>-methyl): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-methylphenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate 3j (<NUM>-bromo-(<NUM>-methoxy-phenoxy)pyridine, R<NUM> = <NUM>-methoxy): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-methoxyphenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%. <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (m, <NUM>), <NUM> (s, <NUM>). LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (<NUM>-bromo-(<NUM>-trifluoromethyl-phenoxy)pyridine, R<NUM> = <NUM>-trifluoromethyl): reagent: <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), <NUM>-trifluoromethylphenol (<NUM>. 46mmol), CuI (<NUM>. 61mmol), Cs<NUM>CO<NUM> (<NUM>. 2mmol), TMEDA (<NUM>. 62mmol), yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Operation steps: substituted <NUM>,<NUM>-dibromopyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), CuI (<NUM>. 62mmol) and Cs<NUM>CO<NUM> (<NUM>. 2mmol) wereplaced in a <NUM> dried flask; <NUM> of DMSO is added; TMEDA (<NUM>. 62mmol) was then added; and the solution was heated to <NUM> in an Ar atmosphere to carry out a reaction for about <NUM> hours until TLC transformation was complete. After the reaction system was cooled to room temperature, a large amount of ethyl acetate was added, rinsing with water is carried out four times, extraction with ethyl acetate was carried out twice, EA phases were combined and rinsed with a saturated NaCl solution, and an organic phase was then dried, filtered and spin-dried, thus obtaining a brown oily product.

Intermediate <NUM>-bromo-<NUM>-fluoro-<NUM>-phenoxypyridine 4a (R<NUM>=<NUM>-fluoro), reagent: <NUM>,<NUM>-dibromo-<NUM>-fluoropyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-bromo-<NUM>-fluoro-<NUM>-phenoxypyridine 4b (R<NUM>=<NUM>-fluoro), reagent: <NUM>,<NUM>-dibromo-<NUM>-fluoropyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-bromo-<NUM>-methyl-<NUM>-phenoxypyridine 4c (R<NUM>=<NUM>-methyl), reagent: <NUM>,<NUM>-dibromo-<NUM>-methylpyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-bromo-<NUM>-methyl-<NUM>-phenoxypyridine 4d (R<NUM>=<NUM>-methyl), reagent: <NUM>,<NUM>-dibromo-<NUM>-methylpyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Operation steps: <NUM>,<NUM>-difluoropyridine (<NUM>. 15mmol), substituted phenol (<NUM>. 46mmol) were placed in a <NUM> dried flask; <NUM> of DMSO was added; NaH (<NUM>. 77mmol) was then added; and the solution was heated to <NUM> in an Ar atmosphere to carry out a reaction for about <NUM> hours until TLC transformation was complete. After the reaction system was cooled to room temperature, a large amount of ethyl acetate was added, rinsing with water was carried out four times, extraction with ethyl acetate was carried out twice, EA phases were combined and rinsed with a saturated NaCl solution, and an organic phase was then dried, filtered and spin-dried, thus obtaining a brown oily product.

Intermediate <NUM>-fluoro-<NUM>-phenoxypyridine 5a (R<NUM>=H), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), phenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-fluoro-<NUM>-(<NUM>-fluorophenoxypyridine) 5b (R<NUM>=<NUM>-fluoro), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>-fluorophenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-fluoro-<NUM>-(<NUM>-fluorophenoxypyridine) 5c (R<NUM>=<NUM>-fluoro), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>-fluorophenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-fluoro-<NUM>-(<NUM>-chlorophenoxypyridine) 5d (R<NUM>=<NUM>-chloro), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>-chlorophenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-fluoro-<NUM>-(<NUM>-methylphenoxypyridine) 5e (R<NUM>=<NUM>-methyl), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>-methylphenol (<NUM>. 46mmol) ), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-fluoro-<NUM>-(<NUM>-methoxyphenoxypyridine) 5f (R<NUM>=<NUM>-methoxy), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>-methoxyphenol (<NUM>. 46mmol)), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM>-(<NUM>,<NUM>-difluorophenoxy)-<NUM>-fluoropyridine <NUM> (R<NUM>=<NUM>,<NUM>-difluoro), reagent: <NUM>,<NUM>-difluoro-pyridine (<NUM>. 15mmol), <NUM>,<NUM>-difluorophenol (<NUM>. 46mmol), other reagents and dosages being the same as above, yield <NUM>%, LC-ESI-MS: <NUM> [M+H].

Operation steps: <NUM>-bromo-<NUM>-iodopyrimidine (3mmol), phenol (<NUM>. 2mmol), <NUM>-picolinic acid (<NUM>. 3mmol), CuI (<NUM>. 3mmol), potassium phosphate (<NUM>. 5mmol) were placed in a <NUM> dried flask; <NUM> of DMSO was added; and the solution was heated to <NUM> in an Ar atmosphere to carry out a reaction for about <NUM> hours until TLC transformation was complete. After the reaction system was cooled to room temperature, a large amount of ethyl acetate was added, rinsing with water was carried out four times, extraction with ethyl acetate was carried out twice, EA phases were combined and rinsed with a saturated NaCl solution; an organic phase was then dried, filtered and spin-dried; and purification was carried out by silica gel column chromatograph, thus obtaining <NUM> of a white product, with a yield of <NUM>%. <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (s, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Operation steps: In an Ar atmosphere, <NUM> of DMF solution was placed in an ice water bath, and sodium hydride (<NUM>. 1mmol) and phenol (<NUM>. 6mmol) were carefully added. The solution was then stirred at room temperature for about <NUM> hour, and <NUM>-bromo-<NUM>-fluoropyridine (<NUM>. 6mmol) was then added and the reaction was further performed at room temperature overnight. After completion of the TLC reaction, the reaction was quenched with an aqueous solution of ammonium chloride and extraction with ethyl acetate was carried out three times. The organic phases were combined and dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out to obtain an oily product which was directly used in the next step. LC-ESI-MS: <NUM> [M+H].

Step <NUM>: Corresponding compounds 3a-<NUM>were dissolved in dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithiumwasgradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1a and tetrakis (triphenylphosphine) palladium were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with ethyl acetate was carried out for several times. Rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent.

Intermediate 8a (R<NUM>=H), reagent: Compound 3a (30mmol), n-butyllithium (<NUM>. 3mmol), triisopropyl borate (<NUM>. 4mmol), Compound 1a (<NUM>. 3mmol), tetrakis(triphenylphosphine)palladium ( <NUM>. 78mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield:: <NUM>% (two steps), <NUM> NMR (<NUM>, CDCl3):δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (s, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (s, <NUM>). LC-ESI-MS: <NUM> [M+H].

Intermediate 8b (R<NUM> = <NUM>-fluoro), reagent: Compound 3b (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 8c (R<NUM> = <NUM>-fluoro), reagent: Compound 3c (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 8d (R<NUM> = <NUM>-fluoro), reagent: Compound 3d (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 8e (R<NUM> = <NUM>-chloro), reagent: Compound 3e (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 8e (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound 3f (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Step <NUM>, Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 8i (R<NUM> = <NUM>-methyl), reagent: Compound 3i (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium ( <NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield:: <NUM>% (two steps), <NUM>H NMR (<NUM>, CDCl<NUM>) : δ8. <NUM> (d, J = <NUM>, <NUM>), <NUM> (s, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (brs, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (s, <NUM>), <NUM> (brs, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> (s, <NUM>). LC-ESI-MS: <NUM> [M+H].

Intermediate 8j (R<NUM> = <NUM>-methoxy), reagent: Compound 3j (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (R<NUM> = <NUM>-trifluoromethyl), reagent: Step <NUM>, Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: Corresponding compounds 4a-4d were dissolved in <NUM> of dried THF and cooled to - <NUM> in an Ar atmosphere, and then n-butyllithiumwas gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1a and tetrakis(triphenylphosphine)palladium were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with EA was carried out for several times. Extraction with EA was then carried out, rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent.

Intermediate 9a (R<NUM> = <NUM>-fluoro), reagent: Compound 4a (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 9b (R<NUM> = <NUM>-fluoro), reagent: Compound 4b (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 9c (R<NUM> = <NUM>-methyl), reagent: Compound 4c (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 9d (R<NUM> = <NUM>-methyl), reagent: Compound 4d (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetratrikis(phenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: Corresponding compounds in Compounds 5a-<NUM>were dissolved in dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithiumwas gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1a and tetrakis(triphenylphosphine)palladium were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with ethyl acetate was carried out for several times. Rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product.

Intermediate 10a (R<NUM>= H), reagent: Compound 5a (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 10c (R<NUM> = <NUM>-fluoro), reagent: Compound 5b (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 10d (R<NUM> = <NUM>-fluoro), reagent: Compound 5c (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 10e (R<NUM> = <NUM>-chloro), reagent: Compound 5d (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 10f (R<NUM> = <NUM>-methyl), reagent: Compound 5e (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (R<NUM> = <NUM>-methoxy), reagent: Compound 5f (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate <NUM> (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 10i (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 1a (<NUM>. 73mmol), tetrakis(triphenylphosphinepalladium (<NUM>. 078mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The Compound 5a (3mmol) was dissolved in dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithium (3mmol) was gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate (<NUM>. 94mmol) was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1b (<NUM>. 73mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol) were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution (<NUM>) was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with ethyl acetate was carried out for several times. Rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product 10b (R<NUM>=H), with a yield of <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The Compound <NUM> (3mmol) was dissolved in <NUM> of dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithium (<NUM>, <NUM>. 3mmol, <NUM> in THF) was gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate (<NUM>, <NUM>. 94mmol) was added. Then, the reaction was carried out at - <NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product (<NUM>. 3mmol) of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1a (<NUM>. 73mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 078mmol) were stirred in an Ar atmosphere, and then <NUM> of 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with EA was carried out for several times. Extraction was then carried out with EA, rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product <NUM>, with a yield of <NUM>%, <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (s, <NUM>), <NUM> (s, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (s, <NUM>). LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The boric acid product (<NUM>. 5mmol) of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 1a (<NUM>. 1mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 06mmol) were stirred in an Ar atmosphere, and then <NUM> of 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with EA was carried out for several times. Extraction with EA was then carried out, rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product <NUM>, with a yield of <NUM>%, LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The Compound 3a, the Compound 3d, the Compound <NUM> or the Compound <NUM> (3mmol) was dissolved in <NUM> of dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithium (<NUM>, <NUM>. 3mmol, <NUM> in THF) was gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate (<NUM>, <NUM>. 94mmol) was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product (<NUM>. 2mmol) of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 2a (3mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol) were stirred in an Ar atmosphere, and then <NUM> of 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with EA was carried out for several times. Extraction with EA was then carried out, rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product.

Intermediate 13a (R<NUM>= H), reagent: Compound 3a (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 13b (R<NUM> = <NUM>-fluoro), reagent: Compound 3d (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 13c (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 13d (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM> mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The Compound 3a (3mmol) was dissolved in <NUM> of dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithium (<NUM>, <NUM>. 3mmol, <NUM> in THF) was gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate (<NUM>, <NUM>. 94mmol) was added. Then, the reaction was carried out at - <NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product (<NUM>. 2mmol) of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 2b (3mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol) were stirred in an Ar atmosphere, and then <NUM> of 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with EA was carried out for several times. Extraction with EA was then carried out, rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product 13e, with a yield of <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The Compound 5a, the Compound 5b, the Compound <NUM> or the Compound <NUM>was dissolved in dried THF and cooled to -<NUM> in an Ar atmosphere, and then n-butyllithiumwas gradually added dropwise. The reaction system was further continued for <NUM> hour at this temperature while stirring, and then triisopropyl borate was added. Then, the reaction was carried out at -<NUM> for <NUM> hour, then the reaction system was slowly increased to room temperature, and the reaction was quenched with an aqueous solution of ammonium chloride. Extraction with ethyl acetate was carried out three times, the organic phases were combined, rinsed with water and a saturated NaCl solution and then dried over anhydrous sodium sulfate, and then filtering and reduced-pressure concentration were carried out. Recrystallization was carried out with ethyl acetate and petroleum ether, thus obtaining a white solid boric acid product which was directly used in the next step.

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 2a and tetrakis(triphenylphosphine)palladium were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with ethyl acetate was carried out for several times. Rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product.

Intermediate 14a (R<NUM>= H): reagent: Compound 5a (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 14c (R<NUM> = <NUM>-fluoro): reagent: Compound 5b (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 14d (R<NUM> = <NUM>,<NUM>-difluoro): reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Intermediate 14e (R<NUM> = <NUM>,<NUM>-difluoro), reagent: Compound <NUM> (3mmol), n-butyllithium (<NUM>. 33mmol), triisopropyl borate (<NUM>. 94mmol), Compound 2a (3mmol), tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol), 2N aq. K<NUM>CO<NUM> (<NUM>); product: white solid, yield: <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Step <NUM>: The boric acid product of the previous step was added to <NUM> of DMF which had just been bubbled with Ar, the Compound 2b (3mmol) and tetrakis(triphenylphosphine)palladium (<NUM>. 15mmol) were stirred in an Ar atmosphere, and then 2N aq. K<NUM>CO<NUM> aqueous solution (<NUM>) was added. The reaction system was heated to <NUM> in an Ar atmosphere for keeping reaction overnight until the reaction was complete under the tracking of TLC. The reaction system was cooled to room temperature, filtering was carried out with kieselguhr, and rinsing with ethyl acetate was carried out for several times. Rinsing with water was carried out three times, and then rinsing with a saturated NaCl solution was carried out; then, drying, filtering, and reduced-pressure concentration were carried out; and purification was carried out by silica gel column chromatograph with petroleum ether-ethyl acetate as an eluting agent, thus obtaining a white solid product 14b, with a yield of <NUM>% (two steps), LC-ESI-MS: <NUM> [M+H].

Target compound 15a (R<NUM>= H): reagent: Compound 8a (<NUM>. 33mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) : δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J= <NUM>, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 15b (R<NUM>= <NUM>-fluoro): reagent: Compound 8b (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 15c (R<NUM>= <NUM>-fluoro): reagent: Compound 8c (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 15d (R<NUM>= <NUM>-fluoro): reagent: Compound 8d (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (s, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 15e (R<NUM>= <NUM>-fluoro): reagent: Compound 8e (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 15f (R<NUM>= <NUM>,<NUM>-difluoro): reagent: Compound 8f (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound <NUM> (R<NUM>= <NUM>,<NUM>-difluoro): reagent: Compound <NUM> (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>),<NUM>- <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound <NUM> (R<NUM>= <NUM>,<NUM>-difluoro): reagent: Compound <NUM> (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (s, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 15i (R<NUM>= <NUM>-methyl): reagent: Compound 8i (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 15j (R<NUM>= <NUM>-methoxy): reagent: Compound 8j (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (s, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound <NUM> (R<NUM>= <NUM>-trifluoromethyl): reagent: Compound <NUM> (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 16a (R<NUM>= <NUM>-fluoro): reagent: Compound 9a (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 16b (R<NUM>= <NUM>-fluoro): reagent: Compound 9b (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 16c (R<NUM>= <NUM>-methyl): reagent: Compound 9c (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 16d (R<NUM>= <NUM>-methyl): reagent: Compound 9d (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM>(t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (s, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM>(m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 17a (Ri=H): reagent: Compound 10a (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (s, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 17c (Ri= <NUM>-fluoro): reagent: Compound 10c (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound 17d (Ri= <NUM>-fluoro): reagent: Compound 10d (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound 17e (R1= <NUM>-chloro): reagent: Compound 10e (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound 17f (Ri= <NUM>-methyl): reagent: Compound 10f (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound <NUM>g (Ri= <NUM>-methoxy): reagent: Compound <NUM> (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound <NUM> (Ri= <NUM>,<NUM>-difluoro): reagent: Compound <NUM> (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. LC-ESI-MS: <NUM> [M+H].

Target compound 17i (R<NUM>=<NUM>,<NUM>-difluoro): reagent: Compound 10i (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>%. <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (s, <NUM>), <NUM> (q, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 20a (R<NUM>= CH<NUM>CH<NUM>), Compound 8a (<NUM>. 3mmol), (E)-pent-<NUM>-enoic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Non-claimed compound 20b (R<NUM>=CH<NUM>N(CH<NUM>)<NUM>), Compound 8a (<NUM>. 3mmol), (E)-<NUM>-(dimethylamino)-but-<NUM>-enoic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 20c (R<NUM>=CH<NUM>CH<NUM>OH), Compound 8a (<NUM>. 3mmol), (E)-<NUM>-hydroxypent-<NUM>-enoic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>): δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM>(m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>)∘ LC-ESI-MS: <NUM> [M+H].

Target compound 21a (R<NUM>= CH<NUM>), Compound 8a (<NUM>. 3mmol), but-<NUM>-acetylenic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) ; δ <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (brs, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H]. non-claimed compound 21b (R<NUM>=CH<NUM>N(CH<NUM>)<NUM>), reagent: Compound 8a (<NUM>. 3mmol), <NUM>-(dimethylamino)-but-<NUM>-acetylenic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 21c (R<NUM>=CH<NUM>CH<NUM>OH), reagent: Compound 8a (<NUM>. 3mmol), <NUM>-hydroxy-pent-<NUM>-acetylenic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM>. 065mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 23a (Ri= H): reagent: Compound 13a (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (s, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (td, J = <NUM>, <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 23b (Ri= <NUM>-fluoro): reagent: Compound 13b (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (s, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> -<NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 23c (Ri= <NUM>,<NUM>-difluoro): reagent: Compound 13c (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ8. <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>- <NUM> (m, <NUM>), <NUM>-<NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 23d (Ri= <NUM>,<NUM>-difluoro): reagent: Compound 13d (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM> NMR (<NUM>, CDCl3) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (s, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 24a (Ri= H): reagent: Compound 14a (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl<NUM>) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (t, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

Target compound 24c (Ri= <NUM>-fluoro): reagent: Compound 14c (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 24d (Ri= <NUM>,<NUM>-difluoro): reagent: Compound 14d (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). LC-ESI-MS: <NUM> [M+H].

Target compound 24e (Ri= <NUM>,<NUM>-difluoro): reagent: Compound 14b (<NUM>. 3mmol), acrylic acid (<NUM>. 3mmol), DCC (<NUM>. 3mmol), DMAP (<NUM> mmol); product: white solid, yield: <NUM>% (two steps). <NUM>H NMR (<NUM>, CDCl3) δ <NUM> (d, J = <NUM>, <NUM>), <NUM> (q, J = <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> (d, J = <NUM>, <NUM>), <NUM> (dd, J = <NUM>, <NUM>, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>), <NUM> - <NUM> (m, <NUM>). LC-ESI-MS: <NUM> [M+H].

The drug was dissolved in DMSO to make a <NUM> (mmol/L) stock solution, and the stock solution was then diluted to a drug solution with <NUM>× test concentrations for later use, wherein the test concentrations were reached through dilution at a <NUM>-fold gradient and were <NUM> (nmol / L), <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, respectively. 10µL of the <NUM>× drug stock solution was added to a <NUM>-well plate and then 90µL of a <NUM>× Kinase Buffer was added and the <NUM>-well plate was shaken for <NUM> minutes on a shaker. From each well of the <NUM>-well plate, 5µL of the drug solution was taken and then transferred to a <NUM>-well plate which was provided with <NUM> duplicate wells.

Preparation of a <NUM> × Kinase Buffer: an enzyme was added to the <NUM> × kinase base buffer.

Prepare a <NUM> × oligopeptide solution: FAM-labeled oligopeptide and ATP were added to the <NUM>× kinase base buffer.

10µL of the <NUM>× Kinase Buffer was added to the <NUM>-well plate loaded with 5µL of the drug solution and incubation was then carried out for <NUM> minutes at room temperature. 10µL of the <NUM>× oligopeptide solution was added to the <NUM>-well plate and incubation was then carried out for <NUM> hour at <NUM>. The reaction was stopped by adding 25µL of a stop buffer. The readings were recorded and the inhibition rate of the compound on the enzyme was calculated. The IC<NUM> of BTK kinase was calculated by fitting. The test results were shown in Table <NUM>.

The in-vitro antitumor activity assay was carried out on the synthesized compound by using different solid tumors and leukemia cell lines:.

Preparation method of the drug: the drug was dissolved in DMSO to make a <NUM> stock solution, and then the stock solution was diluted in a certain ratio to obtain <NUM> different concentrations (test concentration <NUM>×). In-vitro culture of tumor cells:
The selected four tumor cells A549, MINO, OCI-LY10, and TMD-<NUM> were incubated in a <NUM>, <NUM>% CO<NUM> cell incubator and then were passaged for later experiments when the cell density reaches <NUM>-<NUM>% (passage was carried out after adherent cells were digested with Duck's EDTA).

The tumor cells A549, MINO, OCI-LY10, and TMD-<NUM> were seeded in a <NUM>-well plate at <NUM> cells/200µL/well and then incubated overnight at <NUM> in a <NUM>% CO<NUM> cell culture incubator. 2µL of the compound was added to each well to final concentrations of <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> and then incubated for <NUM> hours at <NUM> in a <NUM>% CO<NUM> cell incubator, with DMSO (<NUM>%) as a control group. After <NUM> hours, 20µL of a CCK-<NUM> solution was added and then the <NUM>-well plate was placed in a <NUM>, <NUM>% CO<NUM> cell incubator for incubation for <NUM> hours. Wells loaded with the corresponding amount of cell culture fluid the and CCK-<NUM> solution but no cells were considered as blank controls. The absorbance (OD value) was measured at <NUM> using a microplate reader, and the obtained data was used to calculate IC<NUM>. The test results were shown in Table <NUM>.

The cell inhibition rate was calculated as: cell inhibition rate % = [(control group OD value - blank group OD value) - (treatment group OD value - blank group OD value)] / (control cell OD value - blank group OD value) ×<NUM>%, the half inhibitory concentration (IC<NUM>) was calculated by CalcuSyn software.

Compounds I and II were representative compounds reported in the prior patents (Patent Application Nos. : <CIT> and <CIT>) published by the inventors (for the specific structures of the compounds I and II, see the background of the present invention).

The data in Table <NUM> shows that all the compounds obtained by the present invention have significant inhibitory activity against BTK, and the activity of Compound 17awas superior to that of the positive control ibrutinib and was equivalent to that of Compound I (Patent Application No.: <CIT>), indicating that introduction of nitrogen atom in the aromatic ring does not affect the inhibitory activity against BTK, and further, the inhibitory activity of Compound 17awas <NUM> times stronger than that of Compound II (Patent Application No.: <CIT>). Other derivatives also show potent BTK inhibitory activity with IC<NUM> ranging from <NUM> to <NUM>, which has further application prospects.

The results show that at the cellular level, most of the compounds tested exhibit significant tumor cell proliferation inhibitory activities against tumors, including hematomas and solid tumors. Therefore, the compounds involved in the present invention and used as BTK inhibitors have broad anti-tumor application prospects.

The cells used in this experiment were CHO cell lines transfected with HergCdna and stably expressing Herg channels (supplied by Sophion Bioscience, Denmark). The cells were cultured in a medium containing the following components (all from Invitrogen): Ham's F12 medium, <NUM>% (v/v) inactivated fetal bovine serum, 100µg/ml hygromycin B, 100µg/ml Geneticin. <NUM> CHO Herg cells grow in culture dishes containing the above culture liquid and cultured in a <NUM>, <NUM>% CO<NUM> incubator. <NUM> to <NUM> hours before an electrophysiological experiment, CHO Herg cells were transferred to circular slides placed in the culture dishes and grow with the same culture liquid under the same culture conditions as above. The density of CHO Herg cells on each circular slide was required to reach such a value that most cells were independent and stand alone.

In order to obtain the IC<NUM> of the compound, the following concentrations (<NUM>, <NUM>, <NUM>, <NUM>, <NUM> and <NUM>) were selected for test. Before the test, the compound was first diluted with DMSO at gradient to make stock solutions with concentrations of <NUM>, <NUM>, <NUM>, <NUM> and <NUM> and the stock solutions were then diluted with extracellular fluid to a final Mm test concentration. Except that the DMSO concentration in the <NUM> compound test solution was <NUM>%, the final concentration of DMSO in each of the compound solutions with other concentrations was <NUM>%. The test concentration of a positive control Cisapridewas <NUM>. All compound solutions were conventionally sonicated and shaken for <NUM> to <NUM> minutes to ensure complete dissolution of the compound.

This experiment uses a manual patch clamp system (HEKA EPC-<NUM> signal amplifier and digital conversion system, purchased from HEKA Electronics, Germany) for the recording of whole cell currents. The circular slides with CHO Herg cells growing on the surfaces were placed in an electrophysiological recording slot under an inverted microscope. The extracellular fluid was used for continuous perfusion in the recording slot (approximately <NUM> per minute). The experimental procedure uses a conventional whole-cell patch clamp current recording technique. Unless otherwise stated, the experiment was carried out at regular room temperature (~<NUM>). The cells were clamped at a voltage of -<NUM> Mv. The cell clamp voltage was depolarized to +<NUM> Mv to activate the Herg potassium channel, and <NUM> seconds later, it was clamped to -<NUM> Mv to eliminate inactivation and generate tail current. The peak of the tail current was used as the value of the Herg current. After the hERG potassium current recorded in the above step was stabilized under the continuous extracellular fluid perfusion in the recording slot, the drug to be tested can be superimposed to the perfusion until the inhibitory effect of the drug on the hERG current reaches a steady state. Generally, the criterion for determine whether or not the stable state was reached was that the recent three consecutive current recording lines were coincident. After the steady state was reached, extracellular fluid perfusion was carried out for flushing until the hERG current returns to the magnitude before the drug was added. One cell may be used for testing one or more drugs, or multiple concentrations of the same drug, and flushing with extracellular fluid was carried out between tests of different drugs. Cisapride (purchased from Sigma) was used in the experiment as a positive control to ensure that the cells used were of normal quality. The test data was analyzed by data analysis software provided by HEKA Patchmaster, Microsoft Excel and Graphpad Prism. The test results were shown in Table <NUM>.

Compounds I and IIwere representative compounds reported in the prior patents (Patent Application Nos. : <CIT> and <CIT>) published by the inventors (for the specific structures of the compounds I and II, see the background of the present invention).

The test results of Table <NUM> indicate that the hERG channel blocking effects of the compounds of the present invention were markedly weak. For example, the IC<NUM> of Compound 15awas <NUM>, <NUM> times that of ibutinib. Compared with Compound II in the BTK patent document (Patent Application No.: <CIT>), the IC<NUM> of Compound 15awas <NUM> times that of Compound II. Since hERG channel blocking effect was associated with the risk of cardiotoxicity of the drug. Therefore, the low hERGpotassium channel blocking activity of this class of compounds was beneficial to reducing the risk of toxic side effects and improving their druggability.

A <NUM>× kinase base buffer and a reaction stop buffer for respective kinases in the experiment were prepared as required.

The Caliper program reads the plate and uses the data to obtain the IC<NUM> values of the corresponding compounds against kinases.

Compound Iwas a representative compound reported in the prior patent (Patent Application No.: <CIT>) published by the inventors (for the specific structure of the compound I, see the background of the present invention).

The test results of Table <NUM> show that the compounds designed by the present invention have obvious selectivity advantages for kinases, and with Compound 15a as an example, and its inhibitory activity against kinases such as ITK, CSK, FGR, HCK, JAK3, and FLT3 was very weak, and the activities of most of the kinases were greater than <NUM>; therefore, its kinase selectivity for BTK was significantly better than that of Ibutinib and Compound I, and thus, such compounds will have significant advantages in side effects caused by poor selectivity.

SD rats were used as experimental animals and were subjected to intragastric administration in a dose of <NUM>/kg and tail-vein intravenous injection in a dose of <NUM>/kg. The tail-vein blood sampling time points in the intragastric administration were <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> hours; the blood sampling time points in the intravenous administration were <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> hours. <NUM> of whole blood was taken, and <NUM> of plasma after centrifugation was taken and analyzed by LC-MS.

The pharmacokinetic properties of Compounds 15a, 24a and 24e in rats were examined by using ibrutinib as a reference. The test results of Tables <NUM> and <NUM> show that the oral bioavailability of Compounds 15a, 24a and 24bwere obviously improved and were <NUM>, <NUM> and <NUM> times of that of ibrutinib, respectively. Therefore, the compounds of the present invention can be administered by oral absorption for the treatment of diseases.

In CB17 SCID mice, <NUM> of cell suspension containing <NUM> × <NUM>^<NUM> Mino cells was subcutaneously inoculated into the right back of each mouse, and when the mean tumor volume reaches approximately <NUM>. 94mm3 (day <NUM> after inoculation), group administration was started (intragastric administration, twice a day, <NUM> days in total). Animals were monitored daily for health and mortality, and tumor diameters were measured twice a week using vernier calipers to see if tumor growth could be inhibited, delayed, or cured. The efficacy in tumor volume was evaluated by TGI, TGI (%) = (<NUM>-(TVControl-Dn-TVControl-D0)/(TVtreatment-Dn-TVtreatment-D0)/ × <NUM>%, TV Control refers to the tumor volume of the control group, TVTreatment refers to the tumor volume of the treatment group. If TGI ≥ <NUM>%, the drug was considered effective. The efficacy in tumor weight was evaluated by TGI%, tumor weight inhibition rate (TGI)% = (TWC-TWT) / TWc × <NUM>%, TWc: tumor weight of the control group, TWT: tumor weight of the treatment group. According to the NIH guidelines, if TGI ≥ <NUM>%, the drug was considered effective.

Test results: During the administration period, all the mice show good performance in body weight. At the end of the last administration, tumors were taken and weighed, and the tumor weight TGI evaluation shows that the TGIs of all the mice were greater than <NUM>% (see Table <NUM>), showing a good tumor inhibitory effect. The compounds of the present invention have certain advantages in in-vivo tumor activity as compared with Compound II.

In Balb/c mice, arthritis was induced by administration of anti-collagen antibodies and lipopolysaccharides (<NPL>).

The specific method was as follows: On Day <NUM>, female Balb/c mice were intravenously injected with anti-type II collagen ChemicomAb mixture in a dose of <NUM>/kg, and on Day <NUM>, lipopolysaccharide wasintraperitoneally injected in a dose of <NUM>/kg. From Day <NUM> to Day <NUM>, Compounds 15a, 17a, 24a and 24ewere orally administered once a day in a dose of <NUM>/kg. On Day <NUM> after abdominal anesthesia, <NUM> of blood was taken from the femoral artery and centrifuged at 3000r/min for <NUM> minutes, serum wastaken to detect IL-1β with a test kit, and related tissue samples were observed. The IL-1β test results were shown in Table <NUM>.

Claim 1:
A compound having a structure of Formula II or Formula II':
<CHM>
or their optical isomers, or pharmaceutically acceptable salts or solvates;
where each Rg is independently H, halogen, -CF<NUM>H, -CF<NUM>, -CN, C1-C3 alkyl, or C1-C3 alkoxy;
n is selected from <NUM>, <NUM> and <NUM>;
Rd is selected from
<CHM>
when Rd is
<CHM>
Re is selected from H, C2-C6 alkyl, C1-C6 azaalkyl, and C1-C6 oxaalkyl, wherein preferably C2-C6 alkyl, C1-C6 azaalkyl and C1-C6 oxaalkyl are further substituted with amino, hydroxyl, and C1-C3 alkyl; when Rd is
<CHM>
Re is selected from H, CH<NUM>, C2-C6 alkyl, C1-C6 azaalkyl, and C1-C6 oxaalkyl, wherein preferably CH<NUM>, C2-C6 alkyl, C1-C6 azaalkyl and C1-C6 oxaalkyl are further substituted with amino, hydroxyl, and C1-C3 alkyl;
Y<NUM>, Y<NUM>, Y<NUM> and Y<NUM> are independently selected from C(Rf) and N, and at least one of Y<NUM>, Y<NUM>, Y<NUM> and Y<NUM> is N, wherein Rf is selected from H, halogen, C1-C3 alkyl, -CF<NUM>, and -CF<NUM>H.