lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): O=C(N1Cc2cccnc2Nc2ccccc21)C12CC3CC(CC(C3)C1)C2
InChIKey: ROAFOJSTKOETLT-UHFFFAOYSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: R132H IDH1 Enzymatic Assay: Each test compound (10 mM stock in DMSO) is diluted in DMSO to make a 10-point, 3-fold dilution series. 125 nL of each dilution or DMSO alone is dispensed to a 384-well Greiner Lumitrac 200 assay plate using an Echo® Liquid Handler. To each well of the plate is added 20 uL of enzyme in assay buffer or assay buffer alone. Assay buffer consists of 50 mM sodium phosphate, pH 7.0, 50 mM magnesium chloride, 50 mM sodium chloride, and 0.01% (w/v) bovine serum albumin. When present, the R132H mutant IDH1 enzyme is at a working concentration of 1.875 nM (final concentration in assay of 1.5 nM). The assay plate is allowed to incubate for 30 minutes at room temperature and 5 uL of 5× substrate mixture (2.5 uM nicotinamide adenine dinucleotide phosphate, 100 uM adenosine diphosphate, 7.5 mM glyceraldehyde-3-phosphate, 7.5 ug/mL of spinach glyceraldehyde-3-phosphate dehydrogenase, 25 nM phosphoglycerate kinase, and 5 mM alpha-ketoglutarate in assay buffer) is added to all wells. The reaction plate is incubated for 60 minutes followed by addition of 25 uL of Promega Kinase-GLO reagent to all wells and 10-minute incubation.Luminescence is measured using a PerkinElmer Envision plate reader. The percent activity of each dilution is determined as the ratio of background corrected signal to the background corrected signal of wells receiving only DMSO. IC50 values are determined by fitting percent activity data to a four-parameter logistic dose response equation. The IC50 values of the exemplified compounds are included in the tables above in Examples section.Using the above biological assay, all compounds in the examples have IC50 of about 1 nM to about 40,000 nM, or more specifically, about 1 nM to about 20,000 nM, or even more specifically, about 5 nM to about 15,000 nM, or even more specifically, about 5 nM to about 10,000 nM, or even more specifically, about 5 nM to about 5,000 nM, or still more specifically, about 5 nM to about 1,000 nM. Such a result is indicative of the intrinsic activity of the compounds in use as an inhibitor of a mutant IDH1 enzyme. Specific IC50 activity data for the exemplified compounds disclosed herein is provided in the following table.
Measurement: IC50 = 864 nM (pChEMBL 6.059999942779541)
Descriptors: MW 359.47, ALogP 4.89, HBA 3, HBD 1, PSA 45.23, QED 0.79
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5ccccc5n4C)ncnc32)C[C@@H]1O
InChIKey: PHYNSEJXVAXYBW-OHNRDTAOSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 346.43, ALogP 3.92, HBA 5, HBD 1, PSA 55.87, QED 0.6
Compound (SMILES): COc1ccc2[nH]c(-c3ncnc4c3ccn4[C@@H]3C[C@H](C)[C@@H](O)C3)cc2c1
InChIKey: QEJXYSVONQHVAZ-CFZJUORYSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 362.43, ALogP 3.92, HBA 5, HBD 2, PSA 75.96, QED 0.58
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5ccc(Cl)cc5[nH]4)ncnc32)C[C@@H]1O
InChIKey: ZXWGUKGSWBMHEA-FVMIAERFSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 366.85, ALogP 4.56, HBA 4, HBD 2, PSA 66.73, QED 0.55
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5ccc(C#N)cc5[nH]4)ncnc32)C[C@@H]1O
InChIKey: HCNVHKQMTMUWIL-HGQUKEQDSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 357.42, ALogP 3.78, HBA 5, HBD 2, PSA 90.52, QED 0.57
Compound (SMILES): Cc1ccc2cc(-c3ncnc4c3ccn4[C@@H]3C[C@H](C)[C@@H](O)C3)[nH]c2c1
InChIKey: HCJSQLCZFVIAIH-OHNRDTAOSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 346.43, ALogP 4.22, HBA 4, HBD 2, PSA 66.73, QED 0.57
Compound (SMILES): COc1ccc2cc(-c3ncnc4c3ccn4[C@@H]3C[C@H](C)[C@@H](O)C3)[nH]c2c1
InChIKey: HRILVHZLHDPXSB-CFZJUORYSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 362.43, ALogP 3.92, HBA 5, HBD 2, PSA 75.96, QED 0.58
Compound (SMILES): Cc1nc(-c2cc3ccccc3[nH]2)c2ccn([C@@H]3C[C@H](C)[C@@H](O)C3)c2n1
InChIKey: RJAZRZCRXIPERJ-HGQUKEQDSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 346.43, ALogP 4.22, HBA 4, HBD 2, PSA 66.73, QED 0.57
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5cc(F)c(Cl)cc5[nH]4)ncnc32)C[C@@H]1O
InChIKey: LZFNUZZYTKCACV-NMOXLHADSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 384.84, ALogP 4.7, HBA 4, HBD 2, PSA 66.73, QED 0.53
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5cc(F)ccc5[nH]4)ncnc32)C[C@@H]1O
InChIKey: QTDBCNXQLIWPLE-FVMIAERFSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 350.4, ALogP 4.05, HBA 4, HBD 2, PSA 66.73, QED 0.57
Compound (SMILES): COc1cccc2cc(-c3ncnc4c3ccn4[C@@H]3C[C@H](C)[C@@H](O)C3)[nH]c12
InChIKey: SZQQBHIWPCUHJV-QEORTHHSSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 362.43, ALogP 3.92, HBA 5, HBD 2, PSA 75.96, QED 0.58
Compound (SMILES): Cc1c(-c2ncnc3c2ccn3[C@@H]2C[C@H](C)[C@@H](O)C2)[nH]c2ccccc12
InChIKey: KUIVKBPTAINLKB-WRSAYESZSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 346.43, ALogP 4.22, HBA 4, HBD 2, PSA 66.73, QED 0.57
Compound (SMILES): C[C@H]1C[C@@H](n2ccc3c(-c4cc5ccc(C(F)(F)F)cc5[nH]4)ncnc32)C[C@@H]1O
InChIKey: CFEMUYAJACKDCC-FVMIAERFSA-N
Target: Ubiquitin-like modifier-activating enzyme 6 (SINGLE PROTEIN), Homo sapiens
UniProt: A0AVT1
Assay: UBA6 AlphaScreen Assay: The UBA6 enzmatic reaction totals 20 μL and contains 50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 5 mM MgCl2, 2 μM ATP, 60 nM Flag-Ubiquitin, 20 nM Biotin-his-Use1, and 0.15 nM recombinant human his-UBA6 enzyme. The enzymatic reaction mixture, with and without compound inhibitor, is incubated at 24° C. for 90 minutes in a 384 well plate before termination with 10 μL of Stop/Detection buffer (50 mM HEPES (pH 7.5), 0.05% BSA, 0.02% Tween 20, 0.1 mM TCEP, 20 mM EDTA, 30 μg/ml anti-FLAG Acceptor beads (Perkin Elmer), and 6 μg/mL streptavidin donor beads (Perkin Elmer). After incubation for 2 hours at 24° C. in a dark room, quantification of the AlphaScreen signal is performed on the Pherastar (BMG).
Measurement: IC50 = 1025 nM (pChEMBL 5.989999771118164)
Descriptors: MW 400.4, ALogP 4.93, HBA 4, HBD 2, PSA 66.73, QED 0.5
Compound (SMILES): O=C(O)CN1CCC[C@H](c2nc3ccccc3n2[C@H]2C[C@H]3CCC[C@@H](C2)N3C2CCCCCCCCC2)C1
InChIKey: NHGWSBCNPXIJQC-GDWZEYGFSA-N
Target: Nociceptin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41146
Assay: In Vitro Delta-Opioid Receptor Binding Assay: δ-Opioid Receptor Binding Assay Procedures: Radioligand dose-displacement assays used 0.2 nM [3H]-Naltrindole (NEN; 33.0 Ci/mmole) with 10-20 μg membrane protein (recombinant delta opioid receptor expressed in CHO-K1 cells; Perkin Elmer) in a final volume of 500 μL binding buffer (5 mM MgCl2, 5% DMSO, 50 mM Trizma base, pH 7.4). Non-specific binding was determined in the presence of 25 μM unlabeled naloxone. All reactions were performed in 96-deep well polypropylene plates for 1 h at a temperature of about 25° C. Binding reactions were determined by rapid filtration onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma-Aldrich). Harvesting was performed using a 96-well tissue harvester (Packard) followed by five filtration washes with 500 μL ice-cold binding buffer. Filter plates were subsequently dried at 50° C. for 1-2 hrs. Fifty μL/well scintillation cocktail (MicroScint20, Packard) was added and plates were counted in a Packard Top-Count for 1 min/well.
Measurement: Ki = 37.9 nM (pChEMBL 7.420000076293945)
Descriptors: MW 520.76, ALogP 6.75, HBA 5, HBD 1, PSA 61.6, QED 0.47
Compound (SMILES): O=C(O)CN1CCC[C@@H](c2nc3ccccc3n2[C@H]2C[C@H]3CCC[C@@H](C2)N3C2CCCCCCCCC2)C1
InChIKey: NHGWSBCNPXIJQC-OIIADRAWSA-N
Target: Nociceptin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41146
Assay: In Vitro Delta-Opioid Receptor Binding Assay: δ-Opioid Receptor Binding Assay Procedures: Radioligand dose-displacement assays used 0.2 nM [3H]-Naltrindole (NEN; 33.0 Ci/mmole) with 10-20 μg membrane protein (recombinant delta opioid receptor expressed in CHO-K1 cells; Perkin Elmer) in a final volume of 500 μL binding buffer (5 mM MgCl2, 5% DMSO, 50 mM Trizma base, pH 7.4). Non-specific binding was determined in the presence of 25 μM unlabeled naloxone. All reactions were performed in 96-deep well polypropylene plates for 1 h at a temperature of about 25° C. Binding reactions were determined by rapid filtration onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma-Aldrich). Harvesting was performed using a 96-well tissue harvester (Packard) followed by five filtration washes with 500 μL ice-cold binding buffer. Filter plates were subsequently dried at 50° C. for 1-2 hrs. Fifty μL/well scintillation cocktail (MicroScint20, Packard) was added and plates were counted in a Packard Top-Count for 1 min/well.
Measurement: Ki = 690 nM (pChEMBL 6.159999847412109)
Descriptors: MW 520.76, ALogP 6.75, HBA 5, HBD 1, PSA 61.6, QED 0.47
Compound (SMILES): COCCOCCOCCN1CCC[C@@H](c2nc3ccccc3n2[C@H]2C[C@H]3CCC[C@@H](C2)N3[C@H]2C[C@@H]3CCCC[C@@H](C3)C2)C1
InChIKey: HOJZVJQPGCNNOD-WUCRXGINSA-N
Target: Nociceptin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41146
Assay: In Vitro Delta-Opioid Receptor Binding Assay: δ-Opioid Receptor Binding Assay Procedures: Radioligand dose-displacement assays used 0.2 nM [3H]-Naltrindole (NEN; 33.0 Ci/mmole) with 10-20 μg membrane protein (recombinant delta opioid receptor expressed in CHO-K1 cells; Perkin Elmer) in a final volume of 500 μL binding buffer (5 mM MgCl2, 5% DMSO, 50 mM Trizma base, pH 7.4). Non-specific binding was determined in the presence of 25 μM unlabeled naloxone. All reactions were performed in 96-deep well polypropylene plates for 1 h at a temperature of about 25° C. Binding reactions were determined by rapid filtration onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma-Aldrich). Harvesting was performed using a 96-well tissue harvester (Packard) followed by five filtration washes with 500 μL ice-cold binding buffer. Filter plates were subsequently dried at 50° C. for 1-2 hrs. Fifty μL/well scintillation cocktail (MicroScint20, Packard) was added and plates were counted in a Packard Top-Count for 1 min/well.
Measurement: Ki = 182 nM (pChEMBL 6.739999771118164)
Descriptors: MW 606.9, ALogP 6.81, HBA 7, HBD 0, PSA 51.99, QED 0.25
Compound (SMILES): C[C@@H]1C[C@@H]2C[C@H](C1)C[C@H](N1[C@@H]3CCC[C@H]1C[C@@H](n1c(=O)c(NCCP(=O)(O)O)nc4ccccc41)C3)C2
InChIKey: ZGGGKLZIJSBTKM-PHWOVJDESA-N
Target: Nociceptin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41146
Assay: In Vitro ORL-1 Receptor Binding Assay: Radioligand binding assays (screening and dose-displacement) used 0.1 nM [3H]-nociceptin (NEN; 87.7 Ci/mmole) with 10-20 μg membrane protein in a final volume of 500 μL binding buffer (10 mM MgCl2, 1 mM EDTA, 5% DMSO, 50 mM HEPES, pH 7.4). Non-specific binding was determined in the presence of 10 nM unlabeled nociceptin (American Peptide Company). All reactions were performed in 96-deep well polypropylene plates for 1 h at about 25° C. Binding reactions were terminated by rapid filtration onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma-Aldrich). Harvesting was performed using a 96-well tissue harvester (Packard) followed by three filtration washes with 500 μL ice-cold binding buffer. Filter plates were subsequently dried at 50° C. for 2-3 hours. Fifty μL/well scintillation cocktail (BetaScint; Wallac) was added and plates were counted in a Packard Top-Count for 1 min/well. The data from screening and dose-displacement experiments were analyzed using Microsoft Excel and the curve fitting functions in GraphPad PRISM, v. 3.0, respectively, or an in-house function for one-site competition curve-fitting.
Measurement: Ki = 2.92 nM (pChEMBL 8.539999961853027)
Descriptors: MW 528.63, ALogP 4.76, HBA 6, HBD 3, PSA 107.69, QED 0.46
Compound (SMILES): CC1(C)[C@H]2CC[C@@H](CCN3[C@@H]4CCC[C@H]3C[C@@H](n3c(=O)c(P(=O)(O)O)nc5ccccc53)C4)[C@@H]1C2
InChIKey: SOHFWMFWZOOKBF-PZENNZQWSA-N
Target: Nociceptin receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P41146
Assay: In Vitro ORL-1 Receptor Binding Assay: Radioligand binding assays (screening and dose-displacement) used 0.1 nM [3H]-nociceptin (NEN; 87.7 Ci/mmole) with 10-20 μg membrane protein in a final volume of 500 μL binding buffer (10 mM MgCl2, 1 mM EDTA, 5% DMSO, 50 mM HEPES, pH 7.4). Non-specific binding was determined in the presence of 10 nM unlabeled nociceptin (American Peptide Company). All reactions were performed in 96-deep well polypropylene plates for 1 h at about 25° C. Binding reactions were terminated by rapid filtration onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma-Aldrich). Harvesting was performed using a 96-well tissue harvester (Packard) followed by three filtration washes with 500 μL ice-cold binding buffer. Filter plates were subsequently dried at 50° C. for 2-3 hours. Fifty μL/well scintillation cocktail (BetaScint; Wallac) was added and plates were counted in a Packard Top-Count for 1 min/well. The data from screening and dose-displacement experiments were analyzed using Microsoft Excel and the curve fitting functions in GraphPad PRISM, v. 3.0, respectively, or an in-house function for one-site competition curve-fitting.
Measurement: Ki = 11.1 nM (pChEMBL 7.960000038146973)
Descriptors: MW 499.59, ALogP 4.22, HBA 5, HBD 2, PSA 95.66, QED 0.6
Compound (SMILES): CC(C)(O)COc1cc(-c2ccc(N3C[C@@H]4C[C@](C)(C3)[C@@H]4Nc3ncccn3)nc2)c2c(C#N)cnn2c1
InChIKey: QHEKJPDFVXZIQT-QABSLLFYSA-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 = 23 nM (pChEMBL 7.639999866485596)
Descriptors: MW 510.6, ALogP 3.53, HBA 10, HBD 2, PSA 124.49, QED 0.38
Compound (SMILES): CCOc1cc(-c2ccc(N3C[C@@H]4C[C@](C)(C3)[C@@H]4Nc3nc(C)ccc3F)nc2)c2c(C#N)cnn2c1
InChIKey: JSXRTFLRRFLZGR-RPFZEFQRSA-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 = 57.7 nM (pChEMBL 7.239999771118164)
Descriptors: MW 497.58, ALogP 4.84, HBA 8, HBD 1, PSA 91.37, QED 0.41
Compound (SMILES): Fc1cccc(Cn2cnc3ccc(-c4cc(N[C@H]5CN6CCC5CC6)ncc4Cl)cc32)c1
InChIKey: BJFISKCVVQPREW-DEOSSOPVSA-N
Target: Cyclin-dependent kinase 9 (SINGLE PROTEIN), Homo sapiens
UniProt: P50750
Assay: TR-FRET Kinase Assay: CDK9 enzyme activities were measured using LANCE ULight TR-FRET kinase assay reagents (PerkinElmer, Waltham, Mass.). Compounds were directly added in 100% DMSO to white low volume assay plates (Perkin Elmer Proxiplate 6008289) using a Labcyte Echo acoustic dispenser. Assay reagents in serine/threonine kinase assay buffer containing 20 mM HEPES, 10 mM MgCl2, 100 mM Na3VO4, and 0.0075% Triton X-100. were added for final reaction mixture concentrations of 1000 μM ATP, 100 nM U-light MBP peptide (Perkin Elmer TRF0109M) and reaction initiated with 4 nM CDK9/Cyclin T1 (Carna Biosciences 04-110). The kinase reaction was carried out for 30 minutes before addition of stopping buffer to a final of 20 mM EDTA and 0.5 nM of LANCE Ultra Europium anti-phospho-MBP antibody (PerkinElmer TRF0201M) in LANCE detection buffer (PerkinElmer CR97-100). The reaction was equilibrated for 1 hour and the signal read in the Perkin Elmer Envision in TR-FRET mode (excitation at 320 nm and emission at 615665 nm).
Measurement: IC50 = 2300 nM (pChEMBL 5.639999866485596)
Descriptors: MW 461.97, ALogP 5.45, HBA 5, HBD 1, PSA 45.98, QED 0.43
Compound (SMILES): Fc1cccc(Cn2cnc3ccc(-c4cc(N[C@@H]5CN6CCC5CC6)ncc4Cl)cc32)c1
InChIKey: BJFISKCVVQPREW-XMMPIXPASA-N
Target: Cyclin-dependent kinase 9 (SINGLE PROTEIN), Homo sapiens
UniProt: P50750
Assay: TR-FRET Kinase Assay: CDK9 enzyme activities were measured using LANCE ULight TR-FRET kinase assay reagents (PerkinElmer, Waltham, Mass.). Compounds were directly added in 100% DMSO to white low volume assay plates (Perkin Elmer Proxiplate 6008289) using a Labcyte Echo acoustic dispenser. Assay reagents in serine/threonine kinase assay buffer containing 20 mM HEPES, 10 mM MgCl2, 100 mM Na3VO4, and 0.0075% Triton X-100. were added for final reaction mixture concentrations of 1000 μM ATP, 100 nM U-light MBP peptide (Perkin Elmer TRF0109M) and reaction initiated with 4 nM CDK9/Cyclin T1 (Carna Biosciences 04-110). The kinase reaction was carried out for 30 minutes before addition of stopping buffer to a final of 20 mM EDTA and 0.5 nM of LANCE Ultra Europium anti-phospho-MBP antibody (PerkinElmer TRF0201M) in LANCE detection buffer (PerkinElmer CR97-100). The reaction was equilibrated for 1 hour and the signal read in the Perkin Elmer Envision in TR-FRET mode (excitation at 320 nm and emission at 615665 nm).
Measurement: IC50 = 2700 nM (pChEMBL 5.570000171661377)
Descriptors: MW 461.97, ALogP 5.45, HBA 5, HBD 1, PSA 45.98, QED 0.43
Compound (SMILES): C[C@H](C1CC1)N1CC[C@@]23CCCC[C@H]2[C@H]1Cc1ccc(O)cc13
InChIKey: XLDNVUOEHMTAKQ-PSRGHPOCSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Opioid Receptor Binding Assay: The Ki (binding affinity) for opioid receptors was determined using a competitive displacement assay as previously described in Neumeyer (Journal of Med. Chem. 2012, p 3878), which is incorporated herein in its entirety. Briefly, membrane protein from CHO (Chinese Hamster Ovarian) cells that stably expressed the cloned human opioid receptor were incubated with 12 different concentrations of the compound set forth herein in the presence of 0.25 nM [3H]DAMGO (see Tiberi et al., Can. J. Physiol. Pharmacol. 1988, Vol. 66, p 1368, which is incorporated by reference herein in its entirety) in a final volume of 1 mL of 50 mM Tris-HCl, pH 7.5 at 25° C. Incubation times of 60 min were used for [3H]DAMGO (see Gulati et al., Life Sci. 1990, Vol. 47, p 159, which is incorporated by reference herein in its entirety). Nonspecific binding was measured by inclusion of 10 M naloxone. The binding was terminated by filtering the samples through Schleicher & Schuell No. 32 glass fiber filters using a Brandel 48-well cell harvester. The filters were subsequently washed three times with 3 mL of cold 50 mM Tris-HCl, pH 7.5, and were counted in 2 mL Ecoscint A scintillation fluid. IC50 values were calculated by least squares fit to a logarithm-probit analysis. Ki values of unlabelled compounds were calculated from the equation Ki=(IC50)/1+S where S=(concentration of radioligand)/(Kd of radioligand) (Cheng and Prusoff, 1973).
Measurement: Ki = 0.079 nM (pChEMBL 10.100000381469727)
Descriptors: MW 311.47, ALogP 4.25, HBA 2, HBD 1, PSA 23.47, QED 0.88
Compound (SMILES): CO[C@@]12CC[C@@]3(CC1[C@](C)(O)CCc1cccs1)[C@H]1Cc4ccc(O)c5c4[C@@]3(CCN1CC1CC1)[C@@H]2O5
InChIKey: WTGSHWLSWVFVAH-XJCWGSDTSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Opioid Receptor Binding Assay: The Ki (binding affinity) for opioid receptors was determined using a competitive displacement assay as previously described in Neumeyer (Journal of Med. Chem. 2012, p 3878), which is incorporated herein in its entirety. Briefly, membrane protein from CHO (Chinese Hamster Ovarian) cells that stably expressed the cloned human opioid receptor were incubated with 12 different concentrations of the compound set forth herein in the presence of 0.25 nM [3H]DAMGO (see Tiberi et al., Can. J. Physiol. Pharmacol. 1988, Vol. 66, p 1368, which is incorporated by reference herein in its entirety) in a final volume of 1 mL of 50 mM Tris-HCl, pH 7.5 at 25° C. Incubation times of 60 min were used for [3H]DAMGO (see Gulati et al., Life Sci. 1990, Vol. 47, p 159, which is incorporated by reference herein in its entirety). Nonspecific binding was measured by inclusion of 10 M naloxone. The binding was terminated by filtering the samples through Schleicher & Schuell No. 32 glass fiber filters using a Brandel 48-well cell harvester. The filters were subsequently washed three times with 3 mL of cold 50 mM Tris-HCl, pH 7.5, and were counted in 2 mL Ecoscint A scintillation fluid. IC50 values were calculated by least squares fit to a logarithm-probit analysis. Ki values of unlabelled compounds were calculated from the equation Ki=(IC50)/1+S where S=(concentration of radioligand)/(Kd of radioligand) (Cheng and Prusoff, 1973).
Measurement: Ki = 0.43 nM (pChEMBL 9.369999885559082)
Descriptors: MW 521.72, ALogP 5.06, HBA 6, HBD 2, PSA 62.16, QED 0.53
Compound (SMILES): CO[C@@]12CC[C@@]3(C[C@@H]1[C@](C)(O)C(C)(C)C)[C@H]1Cc4ccc(C(N)=O)c5c4[C@@]3(CCN1CC1CC1)[C@H]2O5
InChIKey: PNSGSIISNKYAEX-RLKRXGNBSA-N
Target: Mu-type opioid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P35372
Assay: Opioid Receptor Binding Assay: The Ki (binding affinity) for opioid receptors was determined using a competitive displacement assay as previously described in Neumeyer (Journal of Med. Chem. 2012, p 3878), which is incorporated herein in its entirety. Briefly, membrane protein from CHO (Chinese Hamster Ovarian) cells that stably expressed the cloned human opioid receptor were incubated with 12 different concentrations of the compound set forth herein in the presence of 0.25 nM [3H]DAMGO (see Tiberi et al., Can. J. Physiol. Pharmacol. 1988, Vol. 66, p 1368, which is incorporated by reference herein in its entirety) in a final volume of 1 mL of 50 mM Tris-HCl, pH 7.5 at 25° C. Incubation times of 60 min were used for [3H]DAMGO (see Gulati et al., Life Sci. 1990, Vol. 47, p 159, which is incorporated by reference herein in its entirety). Nonspecific binding was measured by inclusion of 10 M naloxone. The binding was terminated by filtering the samples through Schleicher & Schuell No. 32 glass fiber filters using a Brandel 48-well cell harvester. The filters were subsequently washed three times with 3 mL of cold 50 mM Tris-HCl, pH 7.5, and were counted in 2 mL Ecoscint A scintillation fluid. IC50 values were calculated by least squares fit to a logarithm-probit analysis. Ki values of unlabelled compounds were calculated from the equation Ki=(IC50)/1+S where S=(concentration of radioligand)/(Kd of radioligand) (Cheng and Prusoff, 1973).
Measurement: Ki = 0.77 nM (pChEMBL 9.109999656677246)
Descriptors: MW 494.68, ALogP 3.81, HBA 5, HBD 2, PSA 85.02, QED 0.65
Compound (SMILES): Cc1cnc(N[C@@H]2[C@@H]3C[C@H]2CN(c2ccc(-c4cc(OCC(C)(C)O)cn5ncc(C#N)c45)cn2)C3)nc1
InChIKey: DWIFBCLCYGTZFW-NXKWYNOOSA-N
Target: Proto-oncogene tyrosine-protein kinase receptor Ret (SINGLE PROTEIN), Homo sapiens
UniProt: P07949
Assay: A 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 = 36.1 nM (pChEMBL 7.440000057220459)
Descriptors: MW 510.6, ALogP 3.45, HBA 10, HBD 2, PSA 124.49, QED 0.38
Compound (SMILES): CCS(=O)(=O)N1[C@@H]2CCC[C@H]1C[C@@H](Nc1nc(Nc3cc(C)[nH]n3)cc3ncccc13)C2
InChIKey: NSCRWLLMTRAJIH-BJWYYQGGSA-N
Target: P2X purinoceptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UBL9
Assay: Intracellular Calcium Measurement to Assess Antagonist Activity at Human P2X3 and Human P2X2/3 Receptors: A fluorescent imaging plate reader (FLEX/FLIPR station; Molecular Devices) was used to monitor intracellular calcium levels using the calcium-chelating dye Fluo-4 (Molecular Probes). The excitation and emission wavelengths used to monitor fluorescence were 470-495 nm and 515-575 nm, respectively. Cells expressing purinergic receptors P2X3 (human) or P2X2/3 (human) were plated at a density of 15,000 cells/well in collagen-coated 384-well plates approximately 20 hours before beginning the assay. On the day of the assay, 20 μl of Loading buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, 2 μM Fluo-4, and 5 units/mL, hexokinase, pH=7.4) was added and cells dye-loaded for 90 min at 37° C. The dye supernatant was removed and replaced with 45 μl probenecid buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, pH=7.4). The test compound was added in a volume of 5 μl and allowed to incubate for 30 min at 37° C. The final assay DMSO concentration is 1%. The agonist, α,β-Me-ATP, was added in a volume of 20 μl at a concentration representing the EC80 value. The fluorescence was measured for an interval of 90 sec at 2 sec intervals and analyzed based on the increase in peak relative fluorescence units (RFU) compared to the basal fluorescence. Peak fluorescence was used to determine the response to agonist obtained at each concentration of test compound by the following equation: % Response=100*(RFU(test compound)−RFU(control)/RFU(DMSO)−RFU(control)).
Measurement: IC50 = 1600 nM (pChEMBL 5.800000190734863)
Descriptors: MW 455.59, ALogP 3.55, HBA 7, HBD 3, PSA 115.9, QED 0.52
Compound (SMILES): Cc1cnc(-c2cc(O[C@H]3CN4CCC3CC4)cc(C(=O)N[C@H](C)c3ccc(C(F)(F)F)nc3)c2)s1
InChIKey: BTZKHRISYBAOIH-ZHRRBRCNSA-N
Target: P2X purinoceptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P56373
Assay: Intracellular Calcium Measurement to Assess Antagonist Activity at Human P2X3 and Human P2X2/3 Receptors: A fluorescent imaging plate reader (FLEX/FLIPR station; Molecular Devices) was used to monitor intracellular calcium levels using the calcium-chelating dye Fluo-4 (Molecular Probes). The excitation and emission wavelengths used to monitor fluorescence were 470-495 nm and 515-575 nm, respectively. Cells expressing purinergic receptors P2X3 (human) or P2X2/3 (human) were plated at a density of 15,000 cells/well in collagen-coated 384-well plates approximately 20 hours before beginning the assay. On the day of the assay, 20 μl of loading buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, 2 μM Fluo-4, and 5 units/mL, hexokinase, pH=7.4) was added and cells dye-loaded for 90 min at 37° C. The dye supernatant was removed and replaced with 45 μl probenecid buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, pH=7.4). The test compound was added in a volume of 5 μl and allowed to incubate for 30 min at 37° C. The final assay DMSO concentration is 1%. The agonist, α,β-Me-ATP, was added in a volume of 20 μl at a concentration representing the EC80 value. The fluorescence was measured for an interval of 90 sec at 2 sec intervals and analyzed based on the increase in peak relative fluorescence units (RFU) compared to the basal fluorescence. Peak fluorescence was used to determine the response to agonist obtained at each concentration of test compound by the following equation: % Response=100*(RFU(test compound)−RFU(control))/(RFU(DMSO)−RFU(control))The Examples were tested in triplicates per plate and mean values were plotted in Excel XLFit to determine IC50 values at the human P2X3 and human P2X2/3 receptors, percentage of maximal inhibition and the Hill coefficients.
Measurement: IC50 = 31 nM (pChEMBL 7.510000228881836)
Descriptors: MW 516.59, ALogP 5.5, HBA 6, HBD 1, PSA 67.35, QED 0.47
Compound (SMILES): CCc1cnc(-c2cc(O[C@@H]3CN4CCC3CC4)cc(C(=O)N[C@H](C)c3cnc(C(F)(F)F)nc3)c2)s1
InChIKey: SVMXJSAEFPTNIN-IVZQSRNASA-N
Target: P2X purinoceptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UBL9
Assay: Intracellular Calcium Measurement to Assess Antagonist Activity at Human P2X3 and Human P2X2/3 Receptors: A fluorescent imaging plate reader (FLEX/FLIPR station; Molecular Devices) was used to monitor intracellular calcium levels using the calcium-chelating dye Fluo-4 (Molecular Probes). The excitation and emission wavelengths used to monitor fluorescence were 470-495 nm and 515-575 nm, respectively. Cells expressing purinergic receptors P2X3 (human) or P2X2/3 (human) were plated at a density of 15,000 cells/well in collagen-coated 384-well plates approximately 20 hours before beginning the assay. On the day of the assay, 20 μl of loading buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, 2 μM Fluo-4, and 5 units/mL, hexokinase, pH=7.4) was added and cells dye-loaded for 90 min at 37° C. The dye supernatant was removed and replaced with 45 μl probenecid buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, pH=7.4). The test compound was added in a volume of 5 μl and allowed to incubate for 30 min at 37° C. The final assay DMSO concentration is 1%. The agonist, α,β-Me-ATP, was added in a volume of 20 μl at a concentration representing the EC80 value. The fluorescence was measured for an interval of 90 sec at 2 sec intervals and analyzed based on the increase in peak relative fluorescence units (RFU) compared to the basal fluorescence. Peak fluorescence was used to determine the response to agonist obtained at each concentration of test compound by the following equation: % Response=100*(RFU(test compound)−RFU(control))/(RFU(DMSO)−RFU(control))The Examples were tested in triplicates per plate and mean values were plotted in Excel XLFit to determine IC50 values at the human P2X3 and human P2X2/3 receptors, percentage of maximal inhibition and the Hill coefficients.
Measurement: IC50 = 311 nM (pChEMBL 6.510000228881836)
Descriptors: MW 531.6, ALogP 5.15, HBA 7, HBD 1, PSA 80.24, QED 0.45
Compound (SMILES): CCc1cnc(-c2cc(O[C@H]3CN4CCC3CC4)cc(C(=O)N[C@H](C)c3cnc(C(F)(F)F)nc3)c2)s1
InChIKey: SVMXJSAEFPTNIN-QRQCRPRQSA-N
Target: P2X purinoceptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P56373
Assay: Intracellular Calcium Measurement to Assess Antagonist Activity at Human P2X3 and Human P2X2/3 Receptors: A fluorescent imaging plate reader (FLEX/FLIPR station; Molecular Devices) was used to monitor intracellular calcium levels using the calcium-chelating dye Fluo-4 (Molecular Probes). The excitation and emission wavelengths used to monitor fluorescence were 470-495 nm and 515-575 nm, respectively. Cells expressing purinergic receptors P2X3 (human) or P2X2/3 (human) were plated at a density of 15,000 cells/well in collagen-coated 384-well plates approximately 20 hours before beginning the assay. On the day of the assay, 20 μl of Loading buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, 2 μM Fluo-4, and 5 units/mL, hexokinase, pH=7.4) was added and cells dye-loaded for 90 min at 37° C. The dye supernatant was removed and replaced with 45 μl probenecid buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, pH=7.4). The test compound was added in a volume of 5 μl and allowed to incubate for 30 min at 37° C. The final assay DMSO concentration is 1%. The agonist, α,β-Me-ATP, was added in a volume of 20 μl at a concentration representing the EC80 value. The fluorescence was measured for an interval of 90 sec at 2 sec intervals and analyzed based on the increase in peak relative fluorescence units (RFU) compared to the basal fluorescence. Peak fluorescence was used to determine the response to agonist obtained at each concentration of test compound by the following equation: % Response=100*(RFU(test compound)−RFU(control)/RFU(DMSO)−RFU(control)).
Measurement: IC50 = 11 nM (pChEMBL 7.960000038146973)
Descriptors: MW 531.6, ALogP 5.15, HBA 7, HBD 1, PSA 80.24, QED 0.45
Compound (SMILES): Cc1cnc(-c2cc(O[C@@H]3CN4CCC3CC4)cc(C(=O)N[C@H](C)c3ccc(C(F)(F)F)nc3)c2)s1
InChIKey: BTZKHRISYBAOIH-OPAMFIHVSA-N
Target: P2X purinoceptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UBL9
Assay: Intracellular Calcium Measurement to Assess Antagonist Activity at Human P2X3 and Human P2X2/3 Receptors: A fluorescent imaging plate reader (FLEX/FLIPR station; Molecular Devices) was used to monitor intracellular calcium levels using the calcium-chelating dye Fluo-4 (Molecular Probes). The excitation and emission wavelengths used to monitor fluorescence were 470-495 nm and 515-575 nm, respectively. Cells expressing purinergic receptors P2X3 (human) or P2X2/3 (human) were plated at a density of 15,000 cells/well in collagen-coated 384-well plates approximately 20 hours before beginning the assay. On the day of the assay, 20 μl of loading buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, 2 μM Fluo-4, and 5 units/mL, hexokinase, pH=7.4) was added and cells dye-loaded for 90 min at 37° C. The dye supernatant was removed and replaced with 45 μl probenecid buffer (Hank's balanced salt solution, 20 mM HEPES, 0.5 mM CaCl2, 0.5 mM MgCl2, 0.1% BSA, 5 mM probenecid, 10 mM D-glucose monohydrate, pH=7.4). The test compound was added in a volume of 5 μl and allowed to incubate for 30 min at 37° C. The final assay DMSO concentration is 1%. The agonist, α,β-Me-ATP, was added in a volume of 20 μl at a concentration representing the EC80 value. The fluorescence was measured for an interval of 90 sec at 2 sec intervals and analyzed based on the increase in peak relative fluorescence units (RFU) compared to the basal fluorescence. Peak fluorescence was used to determine the response to agonist obtained at each concentration of test compound by the following equation: % Response=100*(RFU(test compound)−RFU(control))/(RFU(DMSO)−RFU(control))The Examples were tested in triplicates per plate and mean values were plotted in Excel XLFit to determine IC50 values at the human P2X3 and human P2X2/3 receptors, percentage of maximal inhibition and the Hill coefficients.
Measurement: IC50 = 1274 nM (pChEMBL 5.889999866485596)
Descriptors: MW 516.59, ALogP 5.5, HBA 6, HBD 1, PSA 67.35, QED 0.47