Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [N:1]1[CH:6]=[C:5](/[CH:7]=[CH:8]/[C:9]([O:11][CH3:12])=[O:10])[CH:4]=[N:3][CH:2]=1>CO.[Pd]>[N:1]1[CH:6]=[C:5]([CH2:7][CH2:8][C:9]([O:11][CH3:12])=[O:10])[CH:4]=[N:3][CH:2]=1
Reactant: COC(=O)/C=C/c1cncnc1
Agent: [Pd]
Solvent: CO
Product: COC(=O)CCc1cncnc1
Yield: 92.6 %

Procedure:
A solution of methyl (2E)-3-(5-pyrimidinyl)-2-propenoate (19.2 g, 117 mmol) and Pd/C (2 g, 1.879 mmol) in methanol (100 mL) was stirred under H2 at 50° C. overnight. The mixture was filtered through a pad of celite and concentrated to give the crude title compound as yellow oil (18 g, 55.6% yield). LCMS: rt=1.11 min, [M+H+]=167
Reaction SMILES: [CH2:1]([N:8]1[C:13]([CH3:15])([CH3:14])[CH2:12][N:11]([C:16]([C:18]2[CH:23]=[C:22]([C:24]3[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][C:25]=3OC)[N:21]=[C:20]3[N:34]([CH:38]4[CH2:43][CH2:42][CH2:41][CH2:40][O:39]4)[N:35]=[C:36]([CH3:37])[C:19]=23)=O)[C:10]([CH3:45])([CH3:44])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.B.CSC.C1C[O:53][CH2:52]C1>>[CH2:1]([N:8]1[C:13]([CH3:15])([CH3:14])[CH2:12][N:11]([CH2:16][C:18]2[CH:23]=[C:22]([C:24]3[CH:29]=[CH:28][C:27]([O:30][CH2:31][O:53][CH3:52])=[CH:26][CH:25]=3)[N:21]=[C:20]3[N:34]([CH:38]4[CH2:43][CH2:42][CH2:41][CH2:40][O:39]4)[N:35]=[C:36]([CH3:37])[C:19]=23)[C:10]([CH3:45])([CH3:44])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: COc1ccc(-c2cc(C(=O)N3CC(C)(C)N(Cc4ccccc4)CC3(C)C)c3c(C)nn(C4CCCCO4)c3n2)c(OC)c1
Reactant: C1CCOC1
Agent: B
Solvent: CSC
Product: COCOc1ccc(-c2cc(CN3CC(C)(C)N(Cc4ccccc4)CC3(C)C)c3c(C)nn(C4CCCCO4)c3n2)cc1
Yield: 96 %

Procedure:
To a solution of 1.54 g of (4-benzyl-2,2,5,5-tetramethyl-piperazin-1-yl)-[6-(4-methoxy-methoxy-phenyl)-3-methyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-yl]-methanone in 9 ml of dry THF 20 ml of borane-dimethylsulfide complex (1 M in DCM) was added slowly at r.t., and the reaction was heated to reflux for 12 h. The reaction was quenched by the addition of 13 ml of methanol, and the solvents were evaporated. The residue was purified by flash chromatography (silica, heptanes/ethyl acetate) yielding 1.44 g (96%) of the title compound.
Reaction SMILES: [CH3:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[OH:14])=[CH:4][CH:3]=1.[H-].[Na+].F[C:18]1[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=1.O>CN(C)C=O>[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][C:18]2[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=2)=[CH:6][CH:7]=1
Reactant: O=[N+]([O-])c1ccc(F)cc1
Reactant: Cc1ccc(-c2ccccc2O)cc1
Agent: [H-]
Agent: [Na+]
Solvent: CN(C)C=O
Solvent: O
Product: Cc1ccc(-c2ccccc2Oc2ccc([N+](=O)[O-])cc2)cc1
Temperature: 25 °C
Reaction time: 0.5 h
Yield: 89 %

Procedure:
A solution of 184 mg (1.0 mmol) of 4-methyl-2'-hydroxy-1,1'-biphenyl (Example 12, Step C) in 3 mL of dimethylformamide was treated with 55 mg of 60% sodium hydride (33 mg NaH, 1.4 mmol). The reaction mixture was stirred at room temperature for 30 minutes then treated with 169 mg (1.19 mmol) of 1-fluoro-4-nitrobenzene. The reaction mixture was heated at 100° C. for 2 hours. The reaction mixture was cooled, poured into 50 mL of water and the resultant mixture was extracted with ethyl ether. The combined extracts were washed with water, dried over magnesium sulfate, filtered and evaporated under vacuum. The residue was chromatographed on silica, eluting with hexane/ethyl acetate (10:1) to give 271 mg (0.89 mmol,88%) of the product. FAB-MS: calculated for C19H15NO2 305: found 306 (M+H). 1H NMR (200 MHz,CDCl3): δ 2.28 (s,3H), 6.82 (d,2H), 7.19 (d,3H), 7.2-7.5 (m,5H), 8.05 (d,2H).
Reaction SMILES: [CH:1]1([N:6]2[C:15]3[N:14]=[C:13]([NH:16][C:17]4[CH:18]=[CH:19][C:20]([C:27]([O-:29])=[O:28])=[C:21]5[C:25]=4[O:24][CH:23]([CH3:26])[CH2:22]5)[N:12]=[CH:11][C:10]=3[N:9]([CH3:30])[C:8](=[O:31])[C@H:7]2[CH2:32][CH3:33])[CH2:5][CH2:4][CH2:3][CH2:2]1.[OH-].[Li+].Cl>CO.O1CCCC1>[CH:1]1([N:6]2[C:15]3[N:14]=[C:13]([NH:16][C:17]4[CH:18]=[CH:19][C:20]([C:27]([OH:29])=[O:28])=[C:21]5[C:25]=4[O:24][CH:23]([CH3:26])[CH2:22]5)[N:12]=[CH:11][C:10]=3[N:9]([CH3:30])[C:8](=[O:31])[C@H:7]2[CH2:32][CH3:33])[CH2:2][CH2:3][CH2:4][CH2:5]1
Reactant: CC[C@@H]1C(=O)N(C)c2cnc(Nc3ccc(C(=O)[O-])c4c3OC(C)C4)nc2N1C1CCCC1
Agent: Cl
Agent: [Li+]
Agent: [OH-]
Solvent: C1CCOC1
Solvent: CO
Product: CC[C@@H]1C(=O)N(C)c2cnc(Nc3ccc(C(=O)O)c4c3OC(C)C4)nc2N1C1CCCC1
Reaction time: 12 h
Yield: 94.9 %

Procedure:
7-[[(7R)-8-Cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2-methyl-2,3-dihydrobenzofuran-4-carboxylate 30c (100 mg, 0.21 mmol) and 1 M lithium hydroxide solution were dissolved in 50 mL of the mixture solvent of methanol and tetrahydrofuran (V/V=1:1). The reaction solution was stirred for 12 hours followed by the addition of 1 M hydrochloric acid to adjust pH to 6 to 7. The resulting solution was concentrated under reduced pressure. The residue was added dropwise with 1 M lithium hydroxide solution to adjust pH to 3 to 4 and extracted with ethyl acetate (30 mL×3). The combined organic phase was concentrated under reduced pressure to obtain the title compound 7-[[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2-methyl-2,3-dihydrobenzofuran-4-carboxylic acid 30d (90 mg, yield: 95.0%) as a white solid.
Reaction SMILES: [H-].[Na+].[I:3][C:4]1[CH:5]=[N:6][NH:7][CH:8]=1.Br[CH2:10][C:11]1[CH:16]=[CH:15][NH:14][C:13](=[O:17])[CH:12]=1>C1COCC1>[I:3][C:4]1[CH:5]=[N:6][N:7]([CH2:10][C:11]2[CH:16]=[CH:15][NH:14][C:13](=[O:17])[CH:12]=2)[CH:8]=1
Reactant: O=c1cc(CBr)cc[nH]1
Reactant: Ic1cn[nH]c1
Agent: [H-]
Agent: [Na+]
Solvent: C1CCOC1
Product: O=c1cc(Cn2cc(I)cn2)cc[nH]1
Temperature: 25 °C
Reaction time: 0.5 h

Procedure:
Sodium hydride (19 mg, 0.48 mmol, 60 wt %) was added to a solution of 4-iodo-1H-pyrazole (47 mg, 0.24 mmol) in THF (2 mL) at 0° C. After 30 minutes, 4-(bromomethyl)pyridin-2(1H)-one (30 mg, 0.16 mmol) was added. The mixture was stirred at 25° C. for 12 hours. The organic layer was dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (EtOAc/MeOH) to afford 4-((4-iodo-1H-pyrazol-1-yl)methyl)pyridin-2(1H)-one. MS ESI calc'd. for C9H9IN3O [M+H]+ 302. found 302. 1H NMR (400 MHz, DMSO-d6) δ 11.54 (s, 1H), 8.05 (s, 1H), 7.61 (s, 1H), 7.32 (d, J=6.8 Hz, 1H), 5.93-5.90 (m, 2H), 5.19 (s, 2H).
Reaction SMILES: C(O[C:4](=[O:31])[CH2:5][O:6][C:7]1[CH:12]=[C:11]([CH:13]([CH3:15])[CH3:14])[CH:10]=[CH:9][C:8]=1[CH2:16][CH2:17][NH:18][S:19]([C:22]1[CH:27]=[C:26]([C:28]#[N:29])[CH:25]=[CH:24][C:23]=1[OH:30])(=[O:21])=[O:20])C.O.[NH2:33][NH2:34]>C(O)C>[C:28]([C:26]1[CH:25]=[CH:24][C:23]([OH:30])=[C:22]([S:19]([NH:18][CH2:17][CH2:16][C:8]2[CH:9]=[CH:10][C:11]([CH:13]([CH3:15])[CH3:14])=[CH:12][C:7]=2[O:6][CH2:5][C:4]([NH:33][NH2:34])=[O:31])(=[O:21])=[O:20])[CH:27]=1)#[N:29]
Reactant: NN
Reactant: CCOC(=O)COc1cc(C(C)C)ccc1CCNS(=O)(=O)c1cc(C#N)ccc1O
Solvent: CCO
Solvent: O
Product: CC(C)c1ccc(CCNS(=O)(=O)c2cc(C#N)ccc2O)c(OCC(=O)NN)c1

Procedure:
Ethyl[2-[2-(5-cyano-2-hydroxybenzenesulfonylamino)-ethyl]-5-isoproylphenoxy]acetate (0.266 g) was dissolved in 5 mL of ethanol. To the solution was added 0.087 mL of hydrazine monohydrate at room temperature, and the mixture was refluxed for 1 hour. The solvent was removed under reduced pressure to give 0.258 g of 5-cyano-N-[2-(2-hydrazinocarbonylmethoxy-4-isopropylphenyl)ethyl]-2-hydroxybenzenesulfonamide.
Reaction SMILES: [NH2:1][C:2]1[CH:6]=[CH:5][N:4]([C:7]2[CH:14]=[CH:13][C:10]([C:11]#[N:12])=[CH:9][CH:8]=2)[N:3]=1.C(O)(=O)C.[CH:19]1([CH:22]=O)[CH2:21][CH2:20]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH:19]1([CH2:22][NH:1][C:2]2[CH:6]=[CH:5][N:4]([C:7]3[CH:14]=[CH:13][C:10]([C:11]#[N:12])=[CH:9][CH:8]=3)[N:3]=2)[CH2:21][CH2:20]1
Reactant: N#Cc1ccc(-n2ccc(N)n2)cc1
Reactant: O=CC1CC1
Agent: CC(=O)O[BH-](OC(C)=O)OC(C)=O
Agent: [Na+]
Solvent: ClCCCl
Solvent: CC(=O)O
Product: N#Cc1ccc(-n2ccc(NCC3CC3)n2)cc1
Yield: 53.8 %

Procedure:
Dissolve 4-(3-amino-pyrazol-1-yl)-benzonitrile (200 mg) in 1,2-dichloroethane (12 mL). Add acetic acid (0.36 mL) and cyclopropanecarboxaldehyde (0.08 mL, 1.06 mmol) and stir the mixture at room temperature under a nitrogen atmosphere for 40 min. Add sodium triacetoxyborohydride (674 mg, 3.18 mmol) and stir for 3 h at room temperature. Quench the reaction with water. Extract the mixture three timed with EtOAc. Dry the combined organic extracts over Na2SO4, filter and concentrate in vacuo to obtain the desired intermediate (136 mg, 54%) that was used without further purification.
Reaction SMILES: [C:1]([CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][NH:20][C:21]1[CH:31]=[CH:30][C:24]([C:25]([O:27]CC)=[O:26])=[CH:23][CH:22]=1)([O:3]C)=[O:2].[OH-].[K+].C(O)C.Cl>O>[C:1]([CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][NH:20][C:21]1[CH:22]=[CH:23][C:24]([C:25]([OH:27])=[O:26])=[CH:30][CH:31]=1)([OH:3])=[O:2]
Reactant: CCOC(=O)c1ccc(NCCCCCCCCCCCCCCCC(=O)OC)cc1
Agent: Cl
Agent: [K+]
Agent: [OH-]
Solvent: O
Solvent: CCO
Product: O=C(O)CCCCCCCCCCCCCCCNc1ccc(C(=O)O)cc1

Procedure:
A solution of 8.8 g. of ethyl 4-(15-carbomethoxypentadecylamino)benzoate, 4.5 g. of potassium hydroxide, and 10 ml. of water in 90 ml. of ethanol is stirred at 75° for 10 hours, cooled, diluted with water, brought to pH 4 with dilute hydrochloric acid, and filtered. The solid is dried and crystallized from acetic acid to yield 4-(15-carboxypentadecylamino)benzoic acid as a white crystalline solid.
Reaction SMILES: [C@H:1]12[CH2:6][C@H:5]1[CH2:4][C@@H:3]([CH2:7][NH:8][C:9]([C:11]1[N:18]3[C:14]([S:15][CH:16]=[CH:17]3)=[N:13][C:12]=1[CH3:19])=[O:10])[NH:2]2.[F:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]2[S:31][C:30]([CH3:32])=[N:29][C:28]=2[C:33](O)=[O:34])=[CH:23][CH:22]=1>>[F:20][C:21]1[CH:22]=[CH:23][C:24]([C:27]2[S:31][C:30]([CH3:32])=[N:29][C:28]=2[C:33]([N:2]2[C@H:3]([CH2:7][NH:8][C:9]([C:11]3[N:18]4[C:14]([S:15][CH:16]=[CH:17]4)=[N:13][C:12]=3[CH3:19])=[O:10])[CH2:4][C@H:5]3[C@@H:1]2[CH2:6]3)=[O:34])=[CH:25][CH:26]=1
Reactant: Cc1nc2sccn2c1C(=O)NC[C@@H]1C[C@@H]2C[C@@H]2N1
Reactant: Cc1nc(C(=O)O)c(-c2ccc(F)cc2)s1
Product: Cc1nc(C(=O)N2[C@H](CNC(=O)c3c(C)nc4sccn34)C[C@@H]3C[C@@H]32)c(-c2ccc(F)cc2)s1

Procedure:
prepared by reaction of 6-methyl-imidazo[2,1-b]thiazole-5-carboxylic acid [(1S,3S,5S)-2-aza-bicyclo[3.1.0]hex-3-ylmethyl]-amide with 5-(4-fluoro-phenyl)-2-methyl-thiazole-4-carboxylic acid. LC-MS (basic): tR=1.29 min; [M+H]+=496.1.
Reaction SMILES: [OH:1][C:2]1[C:15]2[C@:14]34[CH2:16][CH2:17][N:18]([CH3:19])[C@@H:8]([C@@H:9]3[CH2:10][CH2:11][C:12](=[O:20])[CH2:13]4)[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.[C:21](OC(=O)C)(=[O:23])[CH3:22]>N1C=CC=CC=1>[C:21]([O:1][C:2]1[C:15]2[C@:14]34[CH2:16][CH2:17][N:18]([CH3:19])[C@@H:8]([C@@H:9]3[CH2:10][CH2:11][C:12](=[O:20])[CH2:13]4)[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1)(=[O:23])[CH3:22]
Reactant: CC(=O)OC(C)=O
Reactant: CN1CC[C@]23CC(=O)CC[C@H]2[C@H]1Cc1cccc(O)c13
Solvent: c1ccncc1
Product: CC(=O)Oc1cccc2c1[C@]13CCN(C)[C@H](C2)[C@@H]1CCC(=O)C3
Temperature: 25 °C
Reaction time: 8 h

Procedure:
A mixture of (-)-4-hydroxy-N-methylmorphinan-6-one (500 mg, 1.84 mmol), acetic anhydride (5 ml), and pyridine (10 ml) was stirred at room temperature overnight. Acetic anhydride and pyridine were evaporated under vacuum and the residue was taken into toluene and evaporated again. The crude product was taken into CHCl3 and washed with H2O, dried and evaporated to give a foam which was recrystallized from iPr2O-hexane to afford (301 mg, 65%). An analytical sample was recrystallized from iPr2 : mp 96°-97°; [α]D26 -46.7° (c 1.126, CHCl3).
Reaction SMILES: [NH:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]([O:8][CH3:9])=[O:7].[H-].[Na+].[F:12][CH2:13][CH2:14]I.O>CN(C=O)C>[F:12][CH2:13][CH2:14][N:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]([O:8][CH3:9])=[O:7]
Reactant: COC(=O)c1ccc[nH]1
Reactant: FCCI
Agent: [H-]
Agent: [Na+]
Solvent: O
Solvent: CN(C)C=O
Product: COC(=O)c1cccn1CCF
Reaction time: 0.5 h

Procedure:
Methyl 1H-pyrrole-2-carboxylate (3.0 g, 23.3 mmol) was solved in DMF (40 ml). Sodium hydride (1.40 g, 34.9 mmol, 60% in oil) was added and the mixture was stirred for 30 minutes at room-temperature. 1-Fluoro-2-iodoethane (4.1 g, 23.2 mmol) was added and the mixture was stirred for 15 h at 50° C. Water was added and the mixture was extracted with diethylether. The mixture was washed with saturated aqueous ammonium chloride. The product was purified chromatographically, using a mixture of petroleum and ethylacetate as eluent. Yield 1.1 g (28%).
Reaction SMILES: [O:1]=[C:2]([C:16]1[CH:17]=[N:18][CH:19]=[CH:20][CH:21]=1)[CH:3]([CH2:9]N1CCCCC1)[CH2:4][C:5]([O:7][CH3:8])=[O:6]>C(O)C.Cl.O1CCOCC1>[N:18]1[CH:19]=[CH:20][CH:21]=[C:16]([C:2]([C:3](=[CH2:9])[CH2:4][C:5]([O:7][CH3:8])=[O:6])=[O:1])[CH:17]=1
Reactant: COC(=O)CC(CN1CCCCC1)C(=O)c1cccnc1
Agent: Cl
Solvent: C1COCCO1
Solvent: CCO
Product: C=C(CC(=O)OC)C(=O)c1cccnc1
Yield: 80.7 %

Procedure:
A solution of methyl 4-oxo-3-(piperidylmethyl)-4-(3-pyridyl)butanoate (4 g) in ethanol (10 mL) and 4N HCl/dioxane (4.0 mL) was heated at 80° C. for 12 hrs. The reaction mixture was concentrated and purified on flash chromatography (SIO2, CHCl3: MeOH: CH3COOH=10: 1:0.5) to give 2.28 g of the title compound.
Reaction SMILES: [Li+].[CH3:2][CH:3]([N-]C(C)C)[CH3:4].[CH3:9][CH:10]([CH3:34])[CH2:11][C:12]1([CH2:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:16][CH2:15][N:14]([CH2:17][CH2:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:13]1=[O:25].C(Br)C=C>C1COCC1>[CH3:9][CH:10]([CH3:34])[CH2:11][C:12]1([CH:26]([C:3]([CH3:4])=[CH2:2])[C:27]([O:29][C:30]([CH3:32])([CH3:31])[CH3:33])=[O:28])[CH2:16][CH2:15][N:14]([CH2:17][CH2:18][C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)[C:13]1=[O:25]
Reactant: CC(C)CC1(CC(=O)OC(C)(C)C)CCN(CCc2ccccc2)C1=O
Reactant: CC(C)[N-]C(C)C
Agent: [Li+]
Solvent: C1CCOC1
Solvent: C=CCBr
Product: C=C(C)C(C(=O)OC(C)(C)C)C1(CC(C)C)CCN(CCc2ccccc2)C1=O
Temperature: -78 °C
Reaction time: 0.75 h
Yield: 85.9 %

Procedure:
LDA (2.0M, 7.7 mL, 16 mmol) is added to a solution of tert-butyl 3-(2-methylpropyl)-2-oxo-1-(2-phenylethyl)-3-pyrrolidineacetate (EXAMPLE 1, step 3; 4.62 g, 12.9 mmol) and THF (45 mL) at -78° C. The solution is stirred at -78° C. for 45 minutes and allyl bromide (1.3 mL, 16 mmol) is added. The solution is allowed to warm to 0° C. over 2 hours, and is allowed to stir overnight at room temperature. After quenching with saturated aqueous ammonium chloride, aqueous workup (EtOAc, MgSO4) and purification by column chromatography (2:1:17 v/v EtOAc:CH2Cl2 :hexane) gives 4.43 g (86%) of the title compound as yellow oil which solidified upon standing (mp 54.5°-56° C.).
Reaction SMILES: C[O:2][C:3]1[CH:4]=[C:5]([CH:13]=[CH:14][C:15]=1[O:16]C)[C:6]([CH2:8][CH2:9][C:10]([OH:12])=[O:11])=[O:7].Br>>[OH:2][C:3]1[CH:4]=[C:5]([CH:13]=[CH:14][C:15]=1[OH:16])[C:6]([CH2:8][CH2:9][C:10]([OH:12])=[O:11])=[O:7]
Reactant: COc1ccc(C(=O)CCC(=O)O)cc1OC
Agent: Br
Product: O=C(O)CCC(=O)c1ccc(O)c(O)c1

Procedure:
A 5-carboxymethyl-4-(3,4-disubstituted phenyl)-2-mercaptothiazole derivative can be produced by reacting veratrole with succinic anhydride in the presence of anhydrous aluminum chloride to obtain 3-(3,4-dimethoxybenzoyl)propionic acid, subjecting the propionic acid to demethylation with hydrobromic acid to obtain 3-(3,4-dihydroxybenzoyl)propionic acid, then, subjecting it to enol-lactonation in the presence of acetic anhydride and sodium acetate, reacting the resulting compound sequentially with N-bromosuccinimide and with diphenyldiazomethane to obtain 3-(3,4-diacetoxybenzoyl)-3-bromopropionate, and reacting the propionate with ammonium dithiocarbamate to obtain the desired product.
Reaction SMILES: [CH3:1][O:2][C:3]1[N:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]=[CH:8][CH:7]=[C:6]2[N:13]1[CH2:18][CH2:17][N:16]([CH2:19][CH2:20][N:21]2C(=O)C3C(=CC=CC=3)C2=O)[C:15](=[O:32])[CH2:14]1.O.NN>CCO>[NH2:21][CH2:20][CH2:19][N:16]1[CH2:17][CH2:18][N:13]([C:6]2[C:5]3[C:10](=[CH:11][CH:12]=[C:3]([O:2][CH3:1])[N:4]=3)[N:9]=[CH:8][CH:7]=2)[CH2:14][C:15]1=[O:32]
Reactant: COc1ccc2nccc(N3CCN(CCN4C(=O)c5ccccc5C4=O)C(=O)C3)c2n1
Agent: NN
Solvent: CCO
Solvent: O
Product: COc1ccc2nccc(N3CCN(CCN)C(=O)C3)c2n1
Reaction time: 2 h
Yield: 65.8 %

Procedure:
To a solution of 2-(2-{4-[6-(methyloxy)-1,5-naphthyridin-4-yl]-2-oxo-1-piperazinyl}ethyl)-1H-isoindole-1,3(2H)-dione (100 mg, 0.232 mmol) in EtOH (2 mL) was added hydrazine hydrate (120 μL, 3.85 mmol). After 2 h at 85° C., the solution was concentrated and the residue purified by column chromatography (silica, 5-10% MeOH in DCM (1% NH4OH)) yielding the title compound (46 mg, 66%) as a yellow oil: LCMS (ES) m/e 302 (M+H)+.
Reaction SMILES: C(N(CC)CC)C.[NH2:8][C:9]1[CH:10]=[C:11]([C:23](=[O:25])[CH3:24])[CH:12]=[C:13]([C:19]([CH3:22])([CH3:21])[CH3:20])[C:14]=1[O:15][CH2:16][O:17][CH3:18].[C:26](Cl)(=[O:28])[CH3:27]>O1CCCC1>[C:23]([C:11]1[CH:12]=[C:13]([C:19]([CH3:20])([CH3:21])[CH3:22])[C:14]([O:15][CH2:16][O:17][CH3:18])=[C:9]([NH:8][C:26](=[O:28])[CH3:27])[CH:10]=1)(=[O:25])[CH3:24]
Reactant: CC(=O)Cl
Reactant: COCOc1c(N)cc(C(C)=O)cc1C(C)(C)C
Solvent: C1CCOC1
Solvent: CCN(CC)CC
Product: COCOc1c(NC(C)=O)cc(C(C)=O)cc1C(C)(C)C
Reaction time: 0.17 h
Yield: 89.1 %

Procedure:
Triethylamine (60 ml, 430 mmol) was added to a solution of the 1-[3-amino-5-(tert-butyl)-4-(methoxymethoxy)phenyl]-1-ethanone (53.9 g, 215 mmol) in tetrahydrofuran (270 ml) while cooling on ice under a nitrogen atmosphere and then acetyl chloride (23 ml, 323 mmol) was added dropwise. After stirring at the same temperature for 10 minutes, the mixture was stirred at room temperature for 30 minutes. The solvent was distilled off under reduced pressure, water was added to the residue and then extraction was performed with ethyl acetate. The organic layer was washed with 1 N hydrochloric acid water, water, saturated aqueous sodium hydrogencarbonate and brine in that order. After drying with anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure. The residue was recrystallized from ethyl acetate-hexane to yield the title compound (56.2 g, 89.3% yield) as light brown needle-like crystals.
Reaction SMILES: [N+:1]([C:4]1[CH:5]=[C:6]([C:14](=[O:16])[CH3:15])[CH:7]=[C:8]([CH:13]=1)[C:9]([O:11][CH3:12])=[O:10])([O-:3])=[O:2].B.C1COCC1.C1COCC1>O>[N+:1]([C:4]1[CH:5]=[C:6]([CH:14]([OH:16])[CH3:15])[CH:7]=[C:8]([CH:13]=1)[C:9]([O:11][CH3:12])=[O:10])([O-:3])=[O:2]
Reactant: COC(=O)c1cc(C(C)=O)cc([N+](=O)[O-])c1
Agent: B
Solvent: C1CCOC1
Solvent: O
Product: COC(=O)c1cc(C(C)O)cc([N+](=O)[O-])c1
Temperature: 25 °C
Reaction time: 24 h

Procedure:
An oven-dried round bottom flask fitted with a magnetic stirring bar was charged with compound methyl 5-nitro-3-acetylbenzoate (0,5 g), prepared in step 1 of Intermediate 13, BH3THF (1 M solution in THF, 5 mol equiv.), and anhydrous THF. After stirring at room temperature for 24 h, H2O (20 mL) was added and the solution was concentrated in vacuo. The residue was taken in H2O (20 mL) and extracted with CHCl3 (3×100 mL). The combined CH2Cl2 extracts were washed with saturated Na2CO3 solution (20 mL), dried over Na2SO4 and filtered. The solvent was removed in vacuo to afford product. This was used in the next step without further purification.
Reaction SMILES: [CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([N:22]2[CH2:27][CH2:26][CH:25]([OH:28])[CH2:24][CH2:23]2)[N:9]([CH3:21])[C:10](=[O:20])[C:11]=1[O:12]CC1C=CC=CC=1)=[O:5])[CH3:2].[F:29][C:30]([F:35])([F:34])[C:31](O)=[O:32]>>[CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([N:22]2[CH2:27][CH2:26][CH:25]([O:28][C:31](=[O:32])[C:30]([F:35])([F:34])[F:29])[CH2:24][CH2:23]2)[N:9]([CH3:21])[C:10](=[O:20])[C:11]=1[OH:12])=[O:5])[CH3:2]
Reactant: CCOC(=O)c1nc(N2CCC(O)CC2)n(C)c(=O)c1OCc1ccccc1
Reactant: O=C(O)C(F)(F)F
Product: CCOC(=O)c1nc(N2CCC(OC(=O)C(F)(F)F)CC2)n(C)c(=O)c1O
Reaction time: 10 h

Procedure:
5-Benzyloxy-2-(4-hydroxypiperidin-1-yl)-1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid ethyl ester (0.760 g, 1.96 mmol) was treated with trifluroacetic acid (20 mL) at ambient temperature. After 10 h, the reaction mixture was concentrated and purified on silica gel column using 2–5% MeOH/CH2Cl2 to afford desired product as a brown paste (0.650 g, 84%). 1H NMR (500 MHz, CDCl3) δ: 10.02 (br s, 1H), 5.23–5.19 (m, 1H), 4.44 (q, J=7.0 Hz, 2H), 3.57 (s, 3H), 3.36–3.31 (m, 2H), 3.15–3.10 (m, 2H), 2.17–2.11 (m, 2H), 2.02–1.95 (m, 2H), 1.42 (t, J=7.0 Hz, 3H). LRMS (M+H) calcd for C15H19F3N3O6: 394.32. found: 394.09
Reaction SMILES: [Cl:1][C:2]1[C:10]([O:11][CH3:12])=[CH:9][C:5]([C:6](O)=[O:7])=[C:4]([C:13](=O)[C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]#[N:21])[CH:15]=2)[CH:3]=1.O.[NH2:24][NH2:25]>CCO.O>[Cl:1][C:2]1[CH:3]=[C:4]2[C:5]([C:6](=[O:7])[NH:24][N:25]=[C:13]2[C:14]2[CH:15]=[C:16]([CH:17]=[CH:18][CH:19]=2)[C:20]#[N:21])=[CH:9][C:10]=1[O:11][CH3:12]
Reactant: COc1cc(C(=O)O)c(C(=O)c2cccc(C#N)c2)cc1Cl
Reactant: NN
Solvent: O
Solvent: CCO
Product: COc1cc2c(=O)[nH]nc(-c3cccc(C#N)c3)c2cc1Cl
Yield: 20.3 %

Procedure:
A solution of 4-chloro-2-(3-cyanobenzoyl)-5-methoxybenzoic acid (3.0 g, 9.50 mmol) in hydrazine hydrate (0.6 mL 11.4 mmol) and EtOH (40 mL) was heated at 80° C. for 2 h. The reaction mixture was diluted with water (100 mL), and the precipitate was filtered and dried to obtain 3-(7-chloro-6-methoxy-4-oxo-3,4-dihydrophthalazin-1-yl)benzonitrile (0.6 g, 17%) (312.4 [M+H]) 1H NMR: (400 MHz, DMSO) δ: 3.96 (s, 3H), 7.64 (s, 1H), 7.79-7.75 (t, 1H), 7.87 (s, 1H), 7.96-7.94 (d, J=8, 1H), 8.04-8.02 (d, J=8, 1H), 8.09 (s, 1H), 13.03 (s, 1H).
Reaction SMILES: [C:1]1([C:7]2[CH:12]=[C:11]([C:13]3[N:17]4[CH:18]=[CH:19][C:20]([CH:22]5[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]5)=[CH:21][C:16]4=[N:15][CH:14]=3)[CH:10]=[CH:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N(CC)CC)C.[C:35](Cl)(=[O:37])[CH3:36].C([O-])(O)=O.[Na+]>C(Cl)Cl>[C:1]1([C:7]2[CH:12]=[C:11]([C:13]3[N:17]4[CH:18]=[CH:19][C:20]([CH:22]5[CH2:27][CH2:26][N:25]([C:35](=[O:37])[CH3:36])[CH2:24][CH2:23]5)=[CH:21][C:16]4=[N:15][CH:14]=3)[CH:10]=[CH:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1
Reactant: CC(=O)Cl
Reactant: c1ccc(-c2cc(-c3cnc4cc(C5CCNCC5)ccn34)ccn2)cc1
Agent: O=C([O-])O
Agent: [Na+]
Solvent: ClCCl
Solvent: CCN(CC)CC
Product: CC(=O)N1CCC(c2ccn3c(-c4ccnc(-c5ccccc5)c4)cnc3c2)CC1
Temperature: 25 °C
Reaction time: 2 h

Procedure:
To a solution of 3-(2-phenyl-pyridin-4-yl)-7-piperidin-4-yl-imidazo[1,2-a]pyridine (Ex. 1.198) (1.0 eq, 0.20 mmol, 80 mg) in CH2Cl2 (2 ml) is added triethylamine (3 eq, 0.61 mmol, 0.09 ml) and acetyl chloride (1.5 eq, 0.31 mmol, 0.02 ml) and the reaction mixture is stirred at room temperature for 2 h. The reaction mixture is poured into NaHCO3 (50 ml) and the organic phase is extracted with CH2Cl2. The combined organic layers are washed with brine, dried over MgSO4, filtered and the solvent removed in vacuo. The reaction mixture is purified by flash column chromatography eluting with 9:1 DCM/MeOH to yield 1-{4-[3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-a]pyridin-7-yl]-piperidin-1-yl}-ethanone as a white solid; [M+H]+=397
Reaction SMILES: [CH2:1]([O:3][C:4](=[O:20])[C:5]#[C:6][C:7]1[S:11][C:10]([NH:12]C(OC(C)(C)C)=O)=[N:9][CH:8]=1)[CH3:2].FC(F)(F)C(O)=O.C(=O)(O)[O-]>C(Cl)Cl>[CH2:1]([O:3][C:4](=[O:20])[C:5]#[C:6][C:7]1[S:11][C:10]([NH2:12])=[N:9][CH:8]=1)[CH3:2]
Reactant: CCOC(=O)C#Cc1cnc(NC(=O)OC(C)(C)C)s1
Agent: O=C([O-])O
Solvent: ClCCl
Solvent: O=C(O)C(F)(F)F
Product: CCOC(=O)C#Cc1cnc(N)s1
Temperature: 25 °C
Reaction time: 8 h

Procedure:
(2-tert-Butoxycarbonylamino-thiazol-5-yl)-propynoic acid ethyl ester (1.2 g, 4.049 mmol) was dissolved in DCM (20 ml), trifluoroacetic acid (4.617 g, 40.93 mmol) was added in drop wise fashion at 0° C. After complete addition the reaction was allowed to stir for overnight at room temperature. Additional 3 ml of TFA was charged to the reaction and stirred for 2 hr. TLC showed complete reaction. Reaction was basified with sat. bicarbonate. The aqueous layer was extracted with ethyl acetate (30 ml×3). The combined organic layer was washed with water followed by brine and dried over anhydrous sodium sulfate and the solvent was removed on vacuo. The sticky solid product was obtained (0.700 g)