lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): Cc1cc(NC(=O)c2cn(C3CCC(C)(C)CC3)c3ncnc(N)c23)n[nH]1
InChIKey: AHJRPTVABKSPBA-UHFFFAOYSA-N
Target: Tyrosine-protein kinase Lck (SINGLE PROTEIN), Homo sapiens
UniProt: P06239
Assay: LCK Inhibitory Activity Measurement: Regarding the conditions for measurement of in vitro inhibitory activity of compounds against LCK kinase activity, the website of AnaSpec states that Srctide (GEEPLYWSFPAKKK) corresponds to the substrate peptide for reaction to measure LCK kinase activity. Thus, the amino acid sequence was partly modified and biotinylated to prepare biotinylated peptides (biotin-EEPLYWSFPAKKK). The purified recombinant human LCK protein used in the test was purchased from Carna Biosciences, Inc.To measure the inhibitory activity, first, the compounds of the present invention were individually diluted with dimethyl sulfoxide (DMSO) stepwise. Subsequently, LCK protein, the substrate peptides (final concentration: 250 nM), magnesium chloride (final concentration: 10 mM), ATP (final concentration: 50 μM), and a solution of the compound of the present invention in DMSO (final concentration of DMSO: 5%) were added to a buffer for kinase reaction (13.5 mM Tris, pH of 7.5, 2 mM dithiothreitol, 0.009% Tween-20). Each mixture was incubated at 25° C. for 60 minutes to perform kinase reaction. EDTA was then added thereto to give a final concentration of 40 mM so that the reaction was terminated. A detection solution containing Eu-labeled antiphosphotyrosine antibody PT66 (PerkinElmer) and SureLight APC-SA (PerkinElmer) was added thereto, and each mixture was allowed to stand at room temperature for 2 hours or more. Finally, the intensity of fluorescence under the excitation light with a wavelength of 337 nm was measured with a PHERAstar FS (BMG Labtech) at the two wavelengths of 620 nm and 665 nm. The phosphorylation level was calculated from the ratio of the fluorescence intensity at the two wavelengths, and the compound concentration at which phosphorylation was inhibited by 50% was defined as IC50 value (nM).
Measurement: IC50 = 791 nM (pChEMBL 6.099999904632568)
Descriptors: MW 367.46, ALogP 3.44, HBA 6, HBD 3, PSA 114.51, QED 0.66
Compound (SMILES): Nc1ccccc1NC(=O)/C=C/c1cnn(-c2ccccc2)c1
InChIKey: YSRJTYFSYLRCTK-ZHACJKMWSA-N
Target: Histone deacetylase 3 (SINGLE PROTEIN), Homo sapiens
UniProt: O15379
Assay: Enzyme Inhibition: The HDAC activity inhibition assay was performed as follows to determine the ability of a test compound to inhibit HDAC enzymatic activity. Serial dilutions of HDAC inhibitors were prepared in HDAC assay buffer (25 mM Tris/HCl, pH 8.0, 137 mM NaCl, 2.7 mM KCl, 1 mM MgCl2, pH 8) in 96-well assay plates (Fisher scientific, #07-200-309) and were pre-incubated for 2 hours at room temperature in the presence of 1254 μg/ml BSA and purified HDAC1 (BPS Bioscience, San Diego, Calif., #50051), HDAC2 (BPS Bioscience, #50053), or HDAC3/NcoR2 (BPS Bioscience, #50003) at concentrations of 1.25, 1.32, and 0.167 vg/mL, respectively. Following pre-incubation, Fluor-de-Lys™ substrate (Enzo Life Sciences, Plymouth Meeting, Pa., BML-KI104-0050) was added to a final concentration of 10 μM and plates were further incubated for 30 minutes at room temperature. The enzymatic reaction was stopped by addition of Trichostatin A (Sigma-Aldrich, St Louis, Mo., #T8552, final concentration: 100 nM) and trypsin (MP Biomedicals, Solon, Ohio, #02101179) was added to reach a final concentration of 100 μg/mL. After a 15 minute incubation at room temperature, fluorescence was recorded using a Spectramax M2 fluorometer (Molecular Devices, Sunnyvale, Calif.) with excitation at 365 nm and emission at 460 nm.
Measurement: IC50 < 1000 nM (pChEMBL 6)
Descriptors: MW 304.35, ALogP 3.11, HBA 4, HBD 2, PSA 72.94, QED 0.57
Compound (SMILES): COC(=O)N1C[C@@H](C)N(c2ncc3[nH]nc(-c4ccc(N5CCN(C(C)CO)CC5)cc4)c3n2)[C@@H](C)C1
InChIKey: BZVXPMZHHFJTIR-DFNIBXOVSA-N
Target: Fibroblast growth factor receptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P22607
Assay: Enzymatic Assay: un-Phosphorylated (UP): The inhibitor potency of the exemplified compounds was determined in an enzyme discontinuous assay that measures peptide phosphorylation using FRET measurements to detect product formation. Inhibitors were serially diluted in DMSO and a volume of 0.2 μL was transferred to the wells of a 384-well plate. For the isoforms of FGFR (−1, −2, −3 wild-type and mutant isoforms, −4) including un-phosphorylated (UP)proteins, a 5 μL/well volume of enzyme diluted in assay buffer (50 mM HEPES, 10 mM MgCl2, 1 mM EGTA, 0.01% Tween-20, 5 mM DTT, pH 7.5) was added to the plate and pre-incubated with inhibitor for 5 to 15 minutes at ambient temperature. Appropriate controls (enzyme blank and enzyme with no inhibitor) were included on the plate. The reaction was initiated by the addition of a 5 μL/well volume containing both biotinylated EQEDEPEGDYFEWLE (SEQ ID: 1) peptide substrate and ATP in assay buffer. The 10 μL/well reaction concentration of the peptide substrate was 500 nM whereas the ATP concentration was maintained near or below the ATP Km for each FGFR isoform. The ATP Km values were pre-determined for each FGFR isoform in a separate series of experiments. The reaction plate was incubated at 25° C. for 1 hr and the reactions were ended with the addition of 5 μL/well of quench solution (50 mM Tris, 150 mM NaCl, 0.5 mg/mL BSA, pH 7.8; 45 mM EDTA, 600 nM staurosporin, with Perkin Elmer Lance Reagents at 3.75 nM Eu-antibody PY20 and 180 nM APC-Streptavidin). The plate was allowed to equilibrate for −10 minutes at ambient temperature before scanning on a PheraStar plate reader (BMG Labtech) instrument.
Measurement: IC50 = 1250 nM (pChEMBL 5.900000095367432)
Descriptors: MW 508.63, ALogP 2.19, HBA 9, HBD 2, PSA 113.95, QED 0.54
Compound (SMILES): COc1cc(OC)c(F)c(N2Cc3cnc(-c4cn(C)nc4C)cc3N(Cc3cc(C4CC4)on3)C2=O)c1F
InChIKey: CUFMBRJJELWHLY-UHFFFAOYSA-N
Target: Fibroblast growth factor receptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P22607
Assay: FGFR Enzymatic Assay 1: FGFR1, FGFR2, and FGFR4 are measured under equivalent conditions with the following changes in enzyme and ATP concentrations: FGFR1, 0.02 nM and 210 uM respectively, FGFR2, 0.01 nM and 100 uM, respectively, and FGFR4, 0.04 nM and 600 uM respectively. The enzymes were purchased from Millipore or Invitrogen. GraphPad prism3 was used to analyze the data. The IC50 values were derived by fitting the data to the equation for a sigmoidal dose-response with a variable slope. Y=Bottom+(Top−Bottom)/(1+10^((Log IC50−X)*HillSlope)) where X is the logarithm of concentration and Y is the response. Compounds having an IC50 of 1 μM or less are considered active. The compounds of the invention were found to be selective inhibitors of FGFR3 and/or FGFR4 according to the FGFR Enzymatic Assays. Compounds of Formula (I′) and (I) and all the compounds as described herein have been tested and exhibit an IC50 of less than 1 μM. Table 1 provides IC50 data for compounds of the invention assayed in the FGFR Enzymatic Assay after dilution in assay buffer, added to the plate and pre-incubated for 4 hours.
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 536.54, ALogP 5.1, HBA 8, HBD 0, PSA 98.75, QED 0.32
Compound (SMILES): Cc1ccc(C)c(N2CCN(C(=O)CCC3(c4cccnc4)NC(=O)NC3=O)CC2)c1
InChIKey: BIAFAMIYXQBGEE-UHFFFAOYSA-N
Target: 72 kDa type IV collagenase (SINGLE PROTEIN), Homo sapiens
UniProt: P08253
Assay: In Vitro Assay: MMP2: Protocol 2: The basis for the assay is the cleavage of the substrate 390 MMP FRET substrate I (Anaspec, Catalog n#: AS-27076) by human MMP2 (R&D SYSTEMS INC., Cat #902-MP).For the dose response (10 point), 4 μL of a dilution series of compound (2 mM highest concentration, 1/5 dilution in DMSO further diluted 1 in 10 in water, corresponding to a final highest concentration of 20 μM), is transferred to 384 well Fluotrac 200 plate (Greiner, cat #781076) and incubated at room temperature for 30 min with a 26 μL buffer solution (45 mM Tris pH 7.5, 9 mM CaCl2, 135 mM NaCl, 0.045% Brij35) containing MMP2 (0.03 ng/L) (it will be appreciated by the skilled person that the potency read out is independent of the enzyme concentration).The reaction is initiated by adding to the assay plate 390 MMP FRET substrate I (10 μL, 2.5 μM, Anaspec) in the same buffer.Finally, the fluorescence is read on the Envision (Perkin Elmer) after an incubation of 30 min at room temperature (Excitation 485 nm, Emission 530).
Measurement: IC50 > 20000 nM (pChEMBL 4.698999881744385)
Descriptors: MW 421.5, ALogP 1.86, HBA 5, HBD 2, PSA 94.64, QED 0.72
Compound (SMILES): CC(C)C[C@@H](NC(=O)[C@@H](Cc1ccccc1)NC(=O)[C@H](N)Cc1ccccc1)C(=O)N[C@H](CCCCN)C(=O)N1CC[C@@H](B(O)O)C1
InChIKey: ZXPSSCMDSWBRDR-XZTOTZIXSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Agonistic activity of the kappa-opioid receptors: Forskolin can stimulate the release of cAMP from HEK293 cells with high expression of human κ (or μ, or δ)-opioid receptors. The κ-opioid receptor agonists can inhibit the release of cAMP from the HEK293 cells with high expression of human κ-opioid receptors stimulated by Forskolin, but do not affect the release of cAMP from the HEK293 cells with high expression of human μ (or δ)-opioid receptors stimulated by Forskolin. The efficacy of the compounds of the invention as κ-opioid receptor agonists was determined by measuring the ability of the compounds of Examples to inhibit adenylate cyclase activity.Cell culture: The HEK293 cell line highly expressing human κ (or μ, or δ)-opioid receptor were cultured in DMEM medium containing 10% FBS.Stimulation: the test compound was 4-fold diluted in a gradient manner to obtain 10 concentrations, and 50 nl of each was transferred to a 384-well plate, and then 10 nl Forskolin was added; the cells were digested, re-suspended, and counted; and then 10 μl of cell suspension (5×105 cell/mL) was added, and the cells were mixed gently, and incubated at 23° C. for 60 minutes.Detection: cAMP Assay Kit (Cisbio) was used, cAMPD2 and Anti-cAMP conjugate were added, and the resultant mixture was incubated for 1 h at room temperature. The plate was read using envision (Perkin Elmer) and EC50 was obtained by means of fitting with a four-parameter equation.
Measurement: EC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 650.63
Compound (SMILES): O=C(NC1CC1)c1nn2c(c1-c1ccc(Cl)c(F)c1)OCCC2
InChIKey: TWKMZYIUVKFGDK-UHFFFAOYSA-N
Target: 3',5'-cyclic-AMP phosphodiesterase 4D (SINGLE PROTEIN), Homo sapiens
UniProt: Q08499
Assay: cintillation Proximity Assay (SPA): The PDE4A3, PDE4B1, PDE4C1 and PDE4D3 assays use the Scintillation Proximity Assay (SPA) technology to measure the inhibition of human recombinant PDE4A3, PDE4B1, PDE4C1, and PDE4D3 enzyme activity by compounds in vitro. The PDE4A3, PDE4B1, PDE4C1, and PDE4D3 assays are run in parallel using identical parameters, except for the concentration of enzyme (80 pM PDE4A3, 40 pM PDE4B1, 40 pM PDE4C1 and 10 pM PDE4D3). The assays are performed in a 384-well format with 50 μL assay buffer (50 mM TRIS pH 7.5; 1.3 mM MgCl2; 0.01% Brij) containing enough PDE4A3, PDE4B1, PDE4C1, and PDE4D3 to convert 20% of substrate (1 μM cAMP consisting of 20 nM 3H-cAMP+980 μM cold cAMP) and a range of inhibitors. Reactions are incubated for 30 min at 25° C. The addition of 20 μL of 8 mg/mL yttrium silicate SPA beads (PerkinElmer) stops the reaction. The plates are sealed (TopSeal, PerkinElmer) and the beads are allowed to settle for 8 hrs, after which they are read on the TriLux MicroBeta overnight.
Measurement: IC50 > 16400 nM (pChEMBL 4.784999847412109)
Descriptors: MW 335.77, ALogP 3.02, HBA 4, HBD 1, PSA 56.15, QED 0.94
Compound (SMILES): COCCN1CCC(c2ccc3[nH]c(-c4cc(C)nc(C)c4)c(C(C)C)c3c2)CC1
InChIKey: UZOKQLFXPCQPOG-UHFFFAOYSA-N
Target: Toll-like receptor 9 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NR96
Assay: Inhibition Reporter Assay: HEK-Blue-cells (Invivogen) overexpressing human TLR7, TLR8 or TLR9 receptors were used for screening inhibitors of these receptors using an inducible SEAP (secreted embryonic alkaline phosphatase) reporter gene under the control of the IFN-β minimal promoter fused to five NF-κB and AP-1-binding sites. Briefly, cells are seeded into Greiner 384 well plates (15000 cells per well for TLR7, 20,000 for TLR8 and 25,000 for TLR9) and then treated with test compounds in DMSO to yield a final dose response concentration range of 0.05 nM-50 μM. After a 30 minute compound pre-treatment at room temperature, the cells are then stimulated with a TLR7 ligand (gardiquimod at a final concentration of 7.5 μM), TLR8 ligand (R848 at a final concentration of 15.9 μM) or TLR9 ligand (ODN2006 at a final concentration of 5 nM) to activate NF-κB and AP-1 which induce the production of SEAP. After a 22 hour incubation at 37° C., 5% CO2, SEAP levels are determined with the addition of HEK-Blue Detection reagent (Invivogen), a cell culture medium that allows for detection of SEAP, according to manufacturer's specifications.
Measurement: IC50 = 343 nM (pChEMBL 6.460000038146973)
Descriptors: MW 405.59, ALogP 5.8, HBA 3, HBD 1, PSA 41.15, QED 0.56
Compound (SMILES): CCn1c(=O)c(-c2c(F)cccc2OC)cc2cnc(Nc3ccc(N(C)C4CCN(C)CC4)cn3)cc21
InChIKey: SNEGFVQTOOZYQZ-UHFFFAOYSA-N
Target: Tyrosine-protein kinase Lyn (SINGLE PROTEIN), Homo sapiens
UniProt: P07948
Assay: Kinase Assays: A concentration of a drug that reduces the observed activity of an enzyme by 50%. An IC50 is not a true affinity constant and the specific value determined can vary depending on the particular assay used. Nonetheless the rank order of IC50 for a set of compounds will typically be similar from one assay to another. (The true affinity constant for an inhibitor binding to an enzyme, Ki, can of course also be used for the same purposes as described herein for IC50). With respect to the kinases that are targeted by the compounds disclosed herein, kinase activity can be assayed, without limitation, as consumption of ATP or as incorporation of phosphate into a substrate. For example, the assay used in Example 76 assesses consumption of ATP based on luminescent detection of ADP. As an alternate example, the assay used in Example 78 assesses incorporation of phosphate based on the radiologic detection of 33P-labeled artificial substrates. Myriad other kinase assays are known in the art many of which are commercially available either as a kit or a service and one of skill in the art will recognize their particular usefulness for generating IC50 data.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 516.62, ALogP 4.9, HBA 8, HBD 1, PSA 75.52, QED 0.37
Compound (SMILES): Oc1cc(-c2ncc3c(N4CC5CCC(C4)N5)nc(N4CC5(CCOC5)C4)nc3c2F)c2ccccc2c1
InChIKey: CVCAQSGMAXNLEN-UHFFFAOYSA-N
Target: GTPase KRas (SINGLE PROTEIN), Homo sapiens
UniProt: P01116
Assay: KRas G12D Binding Assay: Table 2: The ability of a compound to bind to KRAS G12D was measured using a TR-FRET displacement assay. Biotinylated GDP-loaded recombinant human KRAS G12D (corresponding to amino acids 1:169, produced at Array BioPharma) was incubated with a custom-made Cy5 labelled tracer, europium labelled streptavidin and compound (2% DMSO final) in buffer (50 mM HEPES [pH 7.5], 5mM MgCl2, 0.005% Tween-20 & 1 mM DTT). After a 60 minute incubation at 22° C., the reaction was measured using a PerkinElmer EnVision multimode plate reader via TR-FRET dual wavelength detection, and the percent of control (POC) calculated using a ratiometric emission factor. 100 POC is determined using no test compound and 0 POC is determined using a concentration of control compound that completely inhibits binding of the tracer to KRAS. The POC values were fit to a 4-parameter logistic curve and the IC50 value was determined as the concentration where the curve crosses 50 POC.
Measurement: IC50 = 7413 nM (pChEMBL 5.130000114440918)
Descriptors: MW 512.59, ALogP 3.86, HBA 8, HBD 2, PSA 86.64, QED 0.43
Compound (SMILES): COc1cc2[nH]ncc2cc1Nc1ncnc2[nH]nc(Br)c12
InChIKey: LRDFKVBDTBLENH-UHFFFAOYSA-N
Target: MAP kinase-interacting serine/threonine-protein kinase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9BUB5
Assay: MKNK1 Kinase High ATP Assay: TBDA recombinant fusion protein of Glutathione-S-Transferase (GST, N-terminally) and human full-length MKNK1 (amino acids 1-424 and T344D of accession number BAA 19885.1), expressed in insect cells using baculovirus expression system and purified via glutathione sepharose affinity chromatography, was purchased from Carna Biosciences (product no 02-145) and used as enzyme. As substrate for the kinase reaction the biotinylated peptide biotin-Ahx-IKKRKLTRRKSLKG (C-terminus in amide form) was used, which can be purchased e.g. from the company Biosyntan (Berlin-Buch, Germany).For the assay 50 nL of a 100 fold concentrated solution of the test compound in DMSO was pipetted into a black low volume 384 well microtiter plate (Greiner Bio-One, Frickenhausen, Germany), 2 μL of a solution of MKNK1 in aqueous assay buffer [50 mM HEPES pH 7.5, 5 mM MgCl2, 1.0 mM dithiothreitol, 0.005% (v/v) Nonidet-P40 (Sigma)] was added and the mixture was incubated for 15 min at 22° C. to allow pre-binding of the test compounds to the enzyme before the start of the kinase reaction. Then the kinase reaction was started by the addition of 3 μL of a solution of adenosine-tri-phosphate (ATP, 3.3 mM=>final conc. in the 5 μL assay volume is 2 mM) and substrate (0.1 μM=>final conc. in the 5 μL assay volume is 0.06 μM) in assay buffer and the resulting mixture was incubated for a reaction time of 30 min at 22° C. The concentration of MKNK1 was adjusted depending of the activity of the enzyme lot and was chosen appropriate to have the assay in the linear range, typical concentrations were in the range of 0.003 μg/mL. The reaction was stopped by the addition of 5 μL of a solution of TR-FRET detection reagents (5 nM streptavidine-XL665 [Cisbio Bioassays, Codolet, France] and 1 nM anti-ribosomal protein S6 (pSer236)-antibody from Invitrogen [#44921G] and 1 nM LANCE EU-W1024 labeled ProteinG [Perkin-Elmer, product no. AD0071]) in an aqueous EDTA-solution (100 mM EDTA, 0.1% (w/v) bovine serum albumin in 50 mM HEPES pH 7.5).
Measurement: IC50 = 6 nM (pChEMBL 8.220000267028809)
Descriptors: MW 360.18, ALogP 2.74, HBA 6, HBD 3, PSA 104.4, QED 0.52
Compound (SMILES): Cc1cc(NC(=O)c2c(C#Cc3cncn3C)n(C3(C)CC3)c3ncnc(N)c23)[nH]n1
InChIKey: DFMFALRCABNVBW-UHFFFAOYSA-N
Target: Tyrosine-protein kinase Lck (SINGLE PROTEIN), Homo sapiens
UniProt: P06239
Assay: LCK Inhibitory Activity Measurement: Regarding the conditions for measurement of in vitro inhibitory activity of compounds against LCK kinase activity, the website of AnaSpec states that Srctide (GEEPLYWSFPAKKK) corresponds to the substrate peptide for reaction to measure LCK kinase activity. Thus, the amino acid sequence was partly modified and biotinylated to prepare biotinylated peptides (biotin-EEPLYWSFPAKKK). The purified recombinant human LCK protein used in the test was purchased from Carna Biosciences, Inc.To measure the inhibitory activity, first, the compounds of the present invention were individually diluted with dimethyl sulfoxide (DMSO) stepwise. Subsequently, LCK protein, the substrate peptides (final concentration: 250 nM), magnesium chloride (final concentration: 10 mM), ATP (final concentration: 50 μM), and a solution of the compound of the present invention in DMSO (final concentration of DMSO: 5%) were added to a buffer for kinase reaction (13.5 mM Tris, pH of 7.5, 2 mM dithiothreitol, 0.009% Tween-20). Each mixture was incubated at 25° C. for 60 minutes to perform kinase reaction. EDTA was then added thereto to give a final concentration of 40 mM so that the reaction was terminated. A detection solution containing Eu-labeled antiphosphotyrosine antibody PT66 (PerkinElmer) and SureLight APC-SA (PerkinElmer) was added thereto, and each mixture was allowed to stand at room temperature for 2 hours or more. Finally, the intensity of fluorescence under the excitation light with a wavelength of 337 nm was measured with a PHERAstar FS (BMG Labtech) at the two wavelengths of 620 nm and 665 nm. The phosphorylation level was calculated from the ratio of the fluorescence intensity at the two wavelengths, and the compound concentration at which phosphorylation was inhibited by 50% was defined as IC50 value (nM).
Measurement: IC50 = 396 nM (pChEMBL 6.400000095367432)
Descriptors: MW 415.46, ALogP 1.94, HBA 8, HBD 3, PSA 132.33, QED 0.44
Compound (SMILES): CC(C)Nc1cc(NC(=O)N(C)c2ccc(CN3CCOCC3=O)c(C=O)n2)ncc1C#N
InChIKey: FYNMFEAUAHKDJQ-UHFFFAOYSA-N
Target: Fibroblast growth factor receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P21802
Assay: Inhibition Assay: FGFR2: The in vitro activity of FGFR2 was determined by assaying the phosphorylation level of the substrate in the kinase reaction, by means of an HTRF kinase assay kit. The reaction buffer comprised the following components: 5-fold diluted Enzymatic buffer/kinase 5× (main ingredient: 50 mM HEPES, pH 7.0), 5 mM MgCl2, 1 mM DTT; the human recombinant FGFR2 catalytic structural domain protein (amino acids 400-821) was commercially available from Beijing Sino Biological Inc., diluted with the reaction buffer to a 0.045 ng/μL kinase solution; the substrate reaction solution comprised a biotin labeled tyrosine kinase substrate diluted with the reaction buffer to 800 nM, and 50 μM ATP, and the assay solution comprised an Eu3+ labeled cage-shaped antibody (Cisbio, Catalog number 61T66KLB) diluted with the assay buffer (Cisbio, Catalog number 62SDBRDF) to 0.125 ng/μL, and 50 nM streptavidin labeled XL665.
Measurement: IC50 > 1000 nM (pChEMBL 6)
Descriptors: MW 451.49, ALogP 2.01, HBA 8, HBD 2, PSA 140.55, QED 0.61
Compound (SMILES): Cc1ncsc1-c1ccc(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCOCCN2CCN(Cc3ccc(-c4cc5c(NCc6ccccc6Cl)ncnc5[nH]4)cc3)CC2)C(C)(C)C)cc1
InChIKey: ODDMTZVDIAKWIN-HMCICPHWSA-N
Target: Epidermal growth factor receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P00533
Assay: TR-FRET Assay for ERBB Kinases: All compounds and PROTACs were serially diluted in three-fold increments using 100% DMSO, followed by an intermediate 10-fold dilution using Buffer A (50 mM HEPES, pH 7.5, 50 mM NaCl, 10 mM MgCl2, 1 mM DTT, and 0.1% Pluronic F-68). Two microliters of serially diluted compound or PROTAC were then transferred to black 384-well Proxiplates (PerkinElmer, #6008260) using an Integra Viaflo96. Next, 10 uL of protein kinase in Buffer A was added to each well of the assay plate and pre-incubated with compound for 10 minutes. Kinase reactions were then initiated by addition of 5 uL substrate mix containing 3 mM ATP and 30 uM fluorescein-labeled Poly-GluTyr (Thermo Fisher, #PV3610) in Buffer A and allowed to proceed for 10 minutes at room temperature. Reactions were quenched by addition of a 5 uL mixture containing 5 nM LanthaScreen® Tb-pY20 Antibody (Thermo Fisher, #PV3552) and 40 mM EDTA in Buffer A. Assay plates were then read using a Synergy2 (Biotek Instruments, Winooski, Vt.) via excitation thru a 340/20 nm bandpass filter and emission collected thru 490/10 nm (donor) and 520/25 nm (acceptor) bandpass filters. The final kinase concentrations used for each 15 uL reaction were as follows: 0.2 nM EGFR Exon20NPG (SignalChem, #E10-132GG), 0.1 nM wild type EGFR (BPS Bioscience, #40187), 0.3 nM EGFR L858R/T790M/C797S (BPS Bioscience, #40351), 0.1 nM EGFR L858R (BPS Bioscience, #40189), 0.4 nM L858R/T790M (BPS Bioscience, #40350), InM EGFR Dell9 (SignalChem, #E10-122JG), 10 nM EGFR Dell9 T790M (SignalChem, #E10-122KG), 0.3 nM Her2 (BPS Bioscience, #40230), 15 nM Her2 InsYVMA (SignalChem, #E27-13BG).
Measurement: IC50 = 7100 nM (pChEMBL 5.150000095367432)
Descriptors: MW 1079.77
Compound (SMILES): Cc1cc(-c2ccc(C(=O)[C@@H]3CCCC[C@H]3C(=O)Nc3cn[nH]c3C(F)F)cc2)n[nH]1
InChIKey: DLOIQKSZLNORQH-HZPDHXFCSA-N
Target: Flap endonuclease 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P39748
Assay: Binding Assay: Compounds were tested in a competition binding assay using 3H-MK591 as tracer. (Preparation of MK-591 is described in Bioorg. Med. Chem. Lett. 1999, 9, 2391). A 100,000×g pellet from COS-7 cells stably transfected with a plasmid expressing human ALOX5AP was the source of FLAP. Membrane pellets were resuspended in buffer (100 mM Tris-HCl, 0.05% Tween-20, 140 mM NaCl, 2 mM EDTA, 0.5 mM DTT, 5% Glycerol, pH 7.5) to give a final protein concentration of 12 mg/mL (2 μg/well). To perform assays, 1.4 μL compounds were dispensed into 96-well plates in 3-fold dilution series in triplicate. 84 μL radioligand (25000 CPM, 2 nM final concentration in assay) was then added followed by 84 μL membrane suspension and incubation at rt for 60 min. Following filtration, filter plates were dried 12 h at RT (or 50° C. for 1 hour). 50 μL scintillant was then added, the filterplates were sealed and radioactivity was measured in a microbeta counter. Specific binding was defined as total binding minus non-specific binding. Total binding was defined as 3H-MK591 bound to membranes in the absence of competitor, non-specific binding was defined as 3H-MK591 in the presence of 0.1 mM MK-591.
Measurement: IC50 = 8.6 nM (pChEMBL 8.069999694824219)
Descriptors: MW 427.45, ALogP 4.67, HBA 4, HBD 3, PSA 103.53, QED 0.5
Compound (SMILES): Fc1ccc2ccc(OCc3ccc(-c4noc(C(F)(F)F)n4)c(F)c3)nc2n1
InChIKey: TYOXFTVBALRDRN-UHFFFAOYSA-N
Target: Histone deacetylase 5 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UQL6
Assay: Enzymatic Assay: HDAC5 reagents: N-terminal GST tagged HDAC5 was purchased from BPS Bioscience [catalog #50045]. Assays were performed with buffer containing 20 mM HEPES, pH 8.0 [Boston BioProducts, catalog #BB-104, 1M stock], 137 mM NaCl [Sigma, catalog #S5150, 5M stock], 2.7 mM KCl [BioChemika, catalog #87526, 4M stock], 1 mM MgCl2 [Fluka, catalog #63020, 1M stock], and 0.05% BSA (Fraction V) [Invitrogen, catalog #15260, 7.5% stock]. The HDAC5 enzyme was run at the final concentration of 0.447 nM. Boc-Lys(TFA)-AMC substrate [Bachem, catalog #1-1985.0050], used to evaluate enzyme activity, was added at the final concentration of 60 uM. To enable detection of the signal, Developer II [BioMol Research Laboratories, catalog #KI-176] was added at a 1:200 dilution to the stop solution, which also included 20 uM trichostatin A (TSA) [Sigma, catalog #T8552] to ensure complete termination of the reaction.
Measurement: IC50 = 24 nM (pChEMBL 7.619999885559082)
Descriptors: MW 408.29, ALogP 4.56, HBA 6, HBD 0, PSA 73.93, QED 0.36
Compound (SMILES): CC1(C)CCN(c2ccc(Cc3cncc(C(=O)NCc4ccc5c(N)nccc5c4)c3)cn2)C1
InChIKey: ZLDDWJIJDXHGIU-UHFFFAOYSA-N
Target: Kallikrein-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P06870
Assay: Determination of the IC50 for KLK1: KLK1 inhibitory activity in vitro was determined using standard published methods (see e.g. Johansen et al., Int. J. Tiss. Reac. 1986, 8, 185; Shori et al., Biochem. Pharmacol., 1992, 43, 1209; Stürzebecher et al., Biol. Chem. Hoppe-Seyler, 1992, 373, 1025). Human KLK1 (Callbiochem) was incubated at 37° C. with the fluorogenic substrate H-DVal-Leu-Arg-AFC and various concentrations of the test compound. Residual enzyme activity (initial rate of reaction) was determined by measuring the change in optical absorbance at 410 nm and the IC50 value for the test compound was determined.
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 466.59, ALogP 4.36, HBA 6, HBD 2, PSA 97.03, QED 0.44
Compound (SMILES): COc1ccc(C(=O)N2C3CC2CN(c2ccc(-c4cc(OCC(C)(C)O)cn5ncc(C#N)c45)cn2)C3)cn1
InChIKey: ULCDEFIKBBFSEI-UHFFFAOYSA-N
Target: Proto-oncogene tyrosine-protein kinase receptor Ret (SINGLE PROTEIN), Homo sapiens
UniProt: P07949
Assay: RET Enzyme Assay: Compounds of Formula I were screened for their ability to inhibit wildtype and V804M mutant RET kinase using CisBio's HTRF® KinEASE¿-TK assay technology. Briefly, N-terminal GST tagged recombinant human RET cytoplasmic domain (aa 658-end) from Eurofins (0.25 nM RET; Catalog No. 14-570M) or N-terminal GST tagged recombinant human V804M mutant RET cytoplasmic domain (aa 658-end) from Millipore (0.25 nM enzyme; Catalog No. 14-760) was incubated with 250 nM TK-substrate biotin (CisBio, part of Catalog No. 62TK0PEC) and 1 mM ATP along with test compound in a buffer consisting of 25 mM HEPES pH 7.4, 10 mM MgCl2, 0.01% Triton X-100, and 2% DMSO in a volume of 8 μL. Compounds were typically prepared in a threefold serial dilution in DMSO and added to the assay to give the appropriate final concentration. After a 30-minute incubation at 22° C., the reaction was quenched by adding 8 μL of quench solution containing 31.25 nM Sa-XL665 and 1×TK-ab-Cryptate in HTRF detection buffer (all from CisBio, part of Cat. No. 62TK0PEC). After a 1 hour incubation at 22° C., the extent of reaction was determined using a PerkinElmer EnVision multimode plate reader via HTRF dual wavelength detection, and the percent of control (POC) was calculated using a ratiometric emission factor. 100 POC was determined using no test compounds and 0 POC was determined using pre-quenched control reactions. The POC values were fit to a 4 parameter logistic curve, and the IC50 is defined as the concentration of inhibitor at which the POC equals 50 for the fitted curve.
Measurement: IC50 = 29.9 nM (pChEMBL 7.519999980926514)
Descriptors: MW 539.6, ALogP 2.92, HBA 10, HBD 1, PSA 129.11, QED 0.38
Compound (SMILES): Cc1ccc(NC(=O)c2ccc(CCl)c(C(F)(F)F)c2)cc1-c1cc(N2CCOCC2)c(=O)n(C)c1
InChIKey: AFUKXZCUAPKRSB-UHFFFAOYSA-N
Target: RAF proto-oncogene serine/threonine-protein kinase (SINGLE PROTEIN), Homo sapiens
UniProt: P04049
Assay: In Vitro Raf Activity: Raf and biotinylated Mek, kinase dead, were combined at 2× final concentrations in assay buffer (50 mM Tris, pH 7.5, 15 mM MgCl2, 0.01% BSA and 1 mM DTT) and dispensed 5 ml per well in assay plates (Greiner white 384 well assay plates #781207) containing 0.25 ml of 40× of a Raf kinase inhibitor test compound diluted in 100% DMSO. The plate was incubated for 60 minutes at room temperature. The Raf kinase activity reaction was started by the addition of 5 mL per well of 2×ATP diluted in assay buffer. After 3 hours (b-Raf(V600E)) or 1 hour (c-Raf). The reactions were stopped and the phosphorylated product was measured using a rabbit anti-p-MEK (Cell Signaling, #9121) antibody and the Alpha Screen IgG (ProteinA) detection Kit (PerkinElmer #6760617R), by the addition of 10 mL to the well of a mixture of the antibody (1:2000 dilution) and detection beads (1:2000 dilution of both beads) in Stop/bead buffer (25 mM EDTA, 50 mM Tris, pH 7.5, 0.01% Tween20). The additions were carried out under dark conditions to protect the detection beads from light. A lid was placed on top of the plate and incubated for 1 hour at room temperature, then the luminescence was read on a PerkinElmer Envision instrument. The concentration of each compound for 50% inhibition (IC50) was calculated by non-linear regression using XL Fit data analysis software.
Measurement: IC50 = 2.1 nM (pChEMBL 8.680000305175781)
Descriptors: MW 519.95, ALogP 5.21, HBA 5, HBD 1, PSA 63.57, QED 0.47
Compound (SMILES): COc1cc(F)c(-c2cnc3ccc(C(=O)Nc4cnccc4N4C[C@@H](N)[C@H](O)[C@@H](C5CC5)C4)nc3c2)c(F)c1
InChIKey: LCGLBYKZKAJSNS-PNLFWNEXSA-N
Target: Serine/threonine-protein kinase pim-3 (SINGLE PROTEIN), Homo sapiens
UniProt: Q86V86
Assay: Enzyme Assay: Pim-1 and Pim-3 kinase assays-20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM mgCl2, 0.01% BSA, 5 mM DTT), containing 0.05 μM Biotin-labeled BAD peptide substrate (AnaSpec 62269), 1 mM ATP, and 2.5 pM (Pim-1, Invitrogen PV3503) or 1.25 pM (Pim-3, Millipore 14-738) enzyme for 1 h at 25° C. Reactions were stopped by addition of 10 μL STOP Buffer (150 mM Tris, pH=7.5, 150 mM NaCl, 75 mM EDTA, 0.01% Tween-20, 0.3% BSA,) supplemented with Phospho-Bad (Ser112) Antibody (Cell Signaling 9291) diluted 666-fold, and Streptavidin donor beads (PerkinElmer 6760002) along with Protein-A acceptor beads (PerkinElmer 6760137) at 15 μg/mL each. Supplementation of the STOP buffer with beads and stopping the reactions were done under reduced light. Prior to the stopping reactions STOP buffer with beads was preincubated for 1 h in the dark at room temperature. After stopping the reactions, plates were incubated for 1 h in the dark at room temperature before reading on a PHERAstar FS plate reader (BMG Labtech) under reduced light.Pim-2 kinase assay-20 μL reactions were run in white 384 well polystyrene plates dotted with 0.8 μL compound/DMSO in the assay buffer (50 mM Tris, pH 7.5, 0.01% Tween-20, 5 mM mgCl2, 0.01% BSA, 5 mM DTT), containing 0.05 μM Fluorescein-labeled CREBtide peptide substrate (Invitrogen PV3508), 1 mM ATP, and 1 nM enzyme (Invitrogen PV3649) for 2 h at 25° C. Reactions were stopped by addition of 10 μL TR-FRET Dilution Buffer (Invitrogen PV3574) with 30 mM EDTA and 1.5 nM LanthaScreen Tb-CREB pSer133 antibody (Invitrogen PV3566). After 30 min. incubation at room temperature, plates were read on a PHERAstar FS plate reader (BMG Labtech).
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 546.58, ALogP 3.77, HBA 8, HBD 3, PSA 126.49, QED 0.33
Compound (SMILES): CNc1cc2c(cn1)c(-c1cnn(C)c1)nn2C1CCC(Oc2ccnc(C(F)(F)F)n2)CC1
InChIKey: KSXPMSDQFDBYSH-UHFFFAOYSA-N
Target: Tyrosine-protein kinase receptor TYRO3 (SINGLE PROTEIN), Homo sapiens
UniProt: Q06418
Assay: Enzyme Assay: TYRO3: Compounds of Formula I were screened for their ability to inhibit TYRO3 kinase using Invitrogen's LanthaScreen Eu Kinase Binding technology. GST-tagged recombinant human TYRO3 kinase domain from Carna (5 nM; Cat. No. PR7480A) was incubated with 20 nM Alexa-Fluor® Tracer 236 (PR9078A) and 2 nM Europium-anti-GST (Cat. No. A15116) along with test compound in a buffer consisting of 25 mM HEPES, pH 7.4, 10 mM MgCl2, 0.01% Triton X-100, and 2% DMSO. Compounds are typically prepared in a threefold serial dilution in DMSO and added to the assay to give the appropriate final concentration. After a 60-minute incubation at 22° C., the reaction was measured using a PerkinElmer EnVision multimode plate reader via TR-FRET dual wavelength detection, and the percent of control (POC) calculated using a ratiometric emission factor. 100 POC was determined using no test compounds and 0 POC was determined using a concentration of control compound that completely inhibits the enzyme. The POC values were fit to a 4 parameter logistic curve and the IC50 value is point where the curve crosses 50 POC.
Measurement: IC50 = 350 nM (pChEMBL 6.460000038146973)
Descriptors: MW 472.48, ALogP 4.25, HBA 9, HBD 1, PSA 95.57, QED 0.46
Compound (SMILES): CC(C)(C)NC(=O)c1cnn2ccc(N3CCC[C@@H]3c3cc(F)cnc3CO)nc12
InChIKey: RBUKDNPGCFVSTN-QGZVFWFLSA-N
Target: Tyrosine-protein kinase JAK2 (SINGLE PROTEIN), Homo sapiens
UniProt: O60674
Assay: Jak2 Inhibition Assay: Compounds of Formula I were screened for their ability to inhibit Jak2 using the general enzyme inhibition assay method, in which the assay mixture contained 500 μM ATP, 10 μM Omnia® Y7 peptide (Catalog # IVGN KNZ3071C, Invitrogen Corporation, Carlsbad, Calif.) and 4 nM Jak2 in a total volume of 20 μL. Human Jak2 kinase domain comprising amino acids 808-1132 was purchased from Invitrogen Corporation, Carlsbad, Calif. (catalog # IVGN PV4210).
Measurement: IC50 = 1.8 nM (pChEMBL 8.739999771118164)
Descriptors: MW 412.47, ALogP 2.63, HBA 7, HBD 2, PSA 95.65, QED 0.68
Compound (SMILES): Cc1c(-c2[nH]c3ccc(C4CCN(C(=O)CN5CCC(O)CC5)CC4)cc3c2C(C)C)cn2ncnc2c1C
InChIKey: BHKKOZLFTVJVGQ-UHFFFAOYSA-N
Target: Toll-like receptor 9 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NR96
Assay: TLR7/8/9 Inhibition Reporter Assay: HEK-Blue-cells (Invivogen) overexpressing human TLR7, TLR8 or TLR9 receptors were used for screening inhibitors of these receptors using an inducible SEAP (secreted embryonic alkaline phosphatase) reporter gene under the control of the IFN-β minimal promoter fused to five NF-κB and AP-1-binding sites. Briefly, cells are seeded into Greiner 384 well plates (15000 cells per well for TLR7, 20,000 for TLR8 and 25,000 for TLR9) and then treated with test compounds in DMSO to yield a final dose response concentration range of 0.05 nM-50 μM. After a 30 minute compound pre-treatment at room temperature, the cells are then stimulated with a TLR7 ligand (gardiquimod at a final concentration of 7.5 μM), TLR8 ligand (R848 at a final concentration of 15.9 μM) or TLR9 ligand (ODN2006 at a final concentration of 5 nM) to activate NF-κB and AP-1 which induce the production of SEAP. After a 22 hour incubation at 37° C., 5% CO2, SEAP levels are determined with the addition of HEK-Blue Detection reagent (Invivogen), a cell culture medium that allows for detection of SEAP, according to manufacturer's specifications. The percent inhibition is determined as the % reduction in the HEK-Blue signal present in wells treated with agonist plus DMSO alone compared to wells treated with a known inhibitor.
Measurement: IC50 = 1019 nM (pChEMBL 5.989999771118164)
Descriptors: MW 528.7, ALogP 4.78, HBA 6, HBD 2, PSA 89.76, QED 0.39
Compound (SMILES): C=CC(=O)Nc1cccc(Nc2ncc(F)c(Nc3ccc(OCCOC)cc3)n2)c1
InChIKey: BWYWPHBWTDHLGF-UHFFFAOYSA-N
Target: Tyrosine-protein kinase BTK (SINGLE PROTEIN), Homo sapiens
UniProt: Q06187
Assay: Omnia Assay: Briefly, 10x stocks of EGFR-WT (PV3872) from Invitrogen and EGFR-T790M/L858R (40350) from BPS Bioscience, San Diego, Calif., 1.13×ATP (AS001A) and appropriate Tyr-Sox conjugated peptide substrates (KCZ1001) were prepared in 1× kinase reaction buffer consisting of 20 mM Tris, pH 7.5, 5 mM MgCl2, 1 mM EGTA, 5 mM β-glycerophosphate, 5% glycerol (10× stock, KB002A) and 0.2 mM DTT (DS001A). 5 μL of each enzyme were pre-incubated in a Corning (#3574) 384-well, white, non-binding surface microtiter plate (Corning, N.Y.) for 30 min. at 27° C. with a 0.5 μL volume of 50% DMSO and serially diluted compounds prepared in 50% DMSO. Kinase reactions were started with the addition of 45 μL of the ATP/Tyr-Sox peptide substrate mix and monitored every 30-90 seconds for 60 minutes at λex360/λem485 in a Synergy4 plate reader from BioTek (Winooski, Vt.). At the conclusion of each assay, progress curves from each well were examined for linear reaction kinetics and fit statistics (R2, 95% confidence interval, absolute sum of squares). Initial velocity (0 minutes to 30 minutes) from each reaction was determined from the slope of a plot of relative fluorescence units vs time (minutes) and then plotted against inhibitor concentration to estimate IC50 from log[Inhibitor] vs Response, Variable Slope model in GraphPad Prism from GraphPad Software (San Diego, Calif.).
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 423.45, ALogP 4.25, HBA 7, HBD 3, PSA 97.4, QED 0.33
Compound (SMILES): Cn1ncc(-c2ccc(-c3ccc(C4(C(=O)O)CC4)cc3)cn2)c1Nc1cncc(C(C)(C)F)n1
InChIKey: SWATWOUWJLKSFA-UHFFFAOYSA-N
Target: Lysophosphatidic acid receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q92633
Assay: LPAR1 Membrane Binding Assay: The ability of a compound to inhibit binding of a ligand (1-(4′-(4-(((benzyloxy)carbonyl)amino)-3-methylisoxazol-5-yl)-[1,1′-biphenyl]-4-yl)cyclopropane-1-carboxylic acid) to LPAR1 is assessed via a membrane binding assay. Membrane containing LPAR1 was purchased from Cerep (Cat. No. 290312RB). Prior to the assay, membrane is thawed and homogenized for 15 seconds. 50 μl of test compounds and 50 μl of radio labeled ligand are added to the 96-well plates and then 50 of μl membrane (50-400 ug/ml) are added. Next, 50 μl of SPA PVT WGA beads are added (1-5 mg/ml) and the plates are sealed and incubated at room temperate for 5 minutes. Radio activity is measured by Beta Counter and IC50 values are determined using Genedata Screener analysis tool.
Measurement: Ki = 28 nM (pChEMBL 7.550000190734863)
Descriptors: MW 472.52, ALogP 5, HBA 7, HBD 2, PSA 105.82, QED 0.39
Compound (SMILES): CCOc1cc2ncnc(Oc3cccc(NC(=O)Nc4cc(C(C)(C)F)no4)c3)c2cc1OC
InChIKey: LJGHBHXEMURYFC-UHFFFAOYSA-N
Target: RAF proto-oncogene serine/threonine-protein kinase (SINGLE PROTEIN), Homo sapiens
UniProt: P04049
Assay: Competition Binding Assay: Competition binding assays used herein were developed, validated and performed as described in Fabian et al., Nature Biotechnology 2005, 23, 329-336. Kinases were produced as fusions to T7 phage (See, Fabian et al. or WO04/015142) or alternatively, the kinases were expressed in HEK-293 cells and subsequently tagged with DNA for PCR detection (See, WO08/005310). For the binding assays, streptavidin-coated magnetic beads were treated with biotinylated affinity ligands for 30 min at room temperature to generate affinity resins. The liganded beads were blocked with excess biotin and washed with blocking buffer (SeaBlock (Pierce), 1% BSA, 0.05% Tween 20, 1 mM DTT) to remove unbound ligand and to reduce non-specific binding. Binding reactions were assembled by combining kinase, liganded affinity beads, and test compounds in 1× binding buffer (20% SeaBlock, 0.17×PBS, 0.05% Tween 20, 6 mM DTT). Test compounds were prepared as 100× stocks in DMSO and rapidly diluted into the aqueous environment. DMSO was added to control assays lacking a test compound. Primary screen interactions were performed in polypropylene 384-well plates in a final volume of 34 μL, while Kd determinations were performed in polystyrene 96-well plates in a final volume of 135 μL. The assay plates were incubated at room temperature with shaking for 1 hour, long enough for binding reactions to reach equilibrium, and the affinity beads were washed extensively with wash buffer (1×PBS, 0.05% Tween 20) to remove unbound protein. The beads were then resuspended in elution buffer (1×PBS, 0.05% Tween 20, 2 μM non-biotinylated affinity ligand) and incubated at room temperature with shaking for 30 min. The kinase concentration in the eluates was measured by quantitative PCR. Each kinase was tested individually against each compound. KdS were determined using eleven serial threefold dilutions.
Measurement: Kd < 250 nM (pChEMBL 6.6020002365112305)
Descriptors: MW 481.48, ALogP 5.67, HBA 8, HBD 2, PSA 120.63, QED 0.33
Compound (SMILES): Nc1nc2cc(-c3ccc4ncc(C(=O)NC5CCOCC5)n4c3)ccc2o1
InChIKey: PKBLZZQEYZBMPR-UHFFFAOYSA-N
Target: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (SINGLE PROTEIN), Homo sapiens
UniProt: P42336
Assay: Inhibition Assay of PI3K: An exemplary system is PI 3-Kinase (human) HTRF Assay from Upstate. The assay can be carried out according to the procedures suggested by the manufacturer. Briefly, the assay is a time resolved FRET assay that indirectly measures PIP3 product formed by the activity of a PI3-K. The kinase reaction is performed in a microtitre plate (e.g., a 384 well microtitre plate). The total reaction volume is approximately 20 ul per well. In the first step, each well receives 2 ul of test compound in 20% dimethylsulphoxide resulting in a 2% DMSO final concentration. Next, approximately 14.5 ul of a kinase/PIP2 mixture (diluted in 1× reaction buffer) is added per well for a final concentration of 0.25-0.3 ug/ml kinase and 10 μM PIP2. The plate is sealed and incubated for 15 minutes at room temperature. To start the reaction, 3.5 ul of ATP (diluted in 1× reaction buffer) is added per well for a final concentration of 10 μM ATP. The plate is sealed and incubated for 1 hour at room temperature. The reaction is stopped by adding 5 ul of Stop Solution per well and then 5 ul of Detection Mix is added per well. The plate is sealed, incubated for 1 hour at room temperature, and then read on an appropriate plate reader.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 377.4, ALogP 2.63, HBA 7, HBD 2, PSA 107.68, QED 0.57
Compound (SMILES): Nc1nc2c(ncn2[C@@H]2O[C@@H]3COP(=O)(S)O[C@H]4[C@H]5OCC4(COP(=O)(S)O[C@@H]2C3)O[C@H]5n2cnc3c(N)ncnc32)c(=O)[nH]1
InChIKey: AMBILNITMOGFQG-YYASPSFSSA-N
Target: Stimulator of interferon genes protein (SINGLE PROTEIN), Homo sapiens
UniProt: Q86WV6
Assay: 3H-cGAMP Filtration Binding Assay (HAQ STING): The compounds were serially titrated by the Hamilton STARPlus CORE in a 96-well plate (Greiner, #651201) using a 1:3 ten-point dose response format. After compound preparation, a 2.2 ug/ml working concentration of STING membrane (SEQ. ID. No. 2) was prepared by diluting concentrated membrane into assay buffer (1×PBS; Invitrogen #SH30028.02) and douncing 7× using a manual tissue homogenizer (Wheaton, #357546). 148 uL of prepared membrane was then manually added to each well of a 96-well deep-well polypropylene plate (Fisher Scientific, #12-566-121). Following membrane addition, 2 uL of either titrated test compound, DMSO control (Sigma #276855), or cold cGAMP control (prepared in-house) was added to the appropriate wells using a Biomek FX. Compound and membrane then preincubated for 60 min at RT to allow compound binding to equilibrate. Following equilibration, 8 nM of [3H] c-GAMP ligand was prepared by diluting into assay buffer, and 50 uL of this working stock was then manually added to each well of the assay plate. Plates were then incubated at RT for 60 min, and the contents of each assay plate were then filtered through a 96-well GF/B filter plate (PerkinElmer, #6005250) using a TomTec MachIII Cell Harvester equipped with 20 mM HEPES buffer (Fisher Scientific, #BP299500). The filter plates were then dried at 55° C. for 30 min using a pressurized VWR oven before 30 uL of Ultima GoldF scintillate was added to each well. Tritium levels for each reaction well were then measured using a PerkinElmer TopCount plate reader.
Measurement: EC50 = 6.2 nM (pChEMBL 8.210000038146973)
Descriptors: MW 702.57, ALogP 0.97, HBA 19, HBD 5, PSA 257.96, QED 0.14
Compound (SMILES): COC(=O)c1cc2c(cc1C)/C(=C(/Nc1ccc(C(=O)NOCCN3CCN(C)CC3)c(F)c1)c1ccccc1)C(=O)N2
InChIKey: PIKYCWIZICBHRG-ZIADKAODSA-N
Target: Platelet-derived growth factor receptor beta (SINGLE PROTEIN), Homo sapiens
UniProt: P09619
Assay: PDGFRbeta Enzyme Inhibition: The inhibitory activities of compounds of the invention against PDGFRβ (PDGFRβ Kinase Enzyme System: Promega), were evaluated by mixing the PDGFRβ protein (6.25 ng/mL, 2 μL), substrate (Poly (4:1 Glu4, Tyr1), 100 ng/mL, 2 μL) with the test compound (2 μL at either 3 μM, 0.67 μM, 0.15 μM, 0.033 μM, 0.0073 μM, 0.0016 μM, 0.0036 μM or 0.00008 μM) for 90 min at 25° C. The kinase reaction was initiated by adding ATP (25 μM, 2 μL) and the mixture was incubated for 1 hr at 25° C. ADP-Glo reagent was added for 40 min (8 μL) then development reagent (16 μL) was added for 40 min prior to detection in a microplate reader (EnVision® Multilabel Reader, Perkin Elmer).
Measurement: Ki = 4.92 nM (pChEMBL 8.3100004196167)
Descriptors: MW 587.65, ALogP 3.76, HBA 8, HBD 3, PSA 112.24, QED 0.15
Compound (SMILES): N=C(NC(=O)C(NC(=O)c1ccc(Cl)cc1)c1ccccc1)c1ccccc1
InChIKey: FSGMSXNCOVNKMR-UHFFFAOYSA-N
Target: Sphingosine 1-phosphate receptor 5 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9H228
Assay: TBD: TBD
Measurement: IC50 > 50000 nM (pChEMBL 4.301000118255615)
Descriptors: MW 391.86, ALogP 3.95, HBA 3, HBD 3, PSA 82.05, QED 0.45