lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): Nc1nn(C(=O)C2CCNc3ccccc32)c2c1CCN(C(=O)c1ccccc1)C2
InChIKey: QCZPZIPGLJOMRK-UHFFFAOYSA-N
Target: Prothrombin (SINGLE PROTEIN), Homo sapiens
UniProt: P00734
Assay: Counterscreens for Selectivity: Thrombin. In a 96-well white opaque plate, 80 μl of assay buffer was added to each well. Test compounds were added, and serially diluted as above, to generate a concentration range of approximately 1-100 μM. Human alpha-thrombin (Enzyme Research Labs) was diluted in assay buffer to a final concentration of 12.5 nM. 80 μl of this enzyme solution was added to the assay wells. The enzyme/compound mixtures were incubated for 10 minutes at room temperature. Fluorogenic substrate (Boc-Val-Pro-Arg-7-amido-4-methylcoumarin; Sigma) was added to assay wells at a final concentration of 20 μM. The assay plate was spun for 1 minute at 1500 g and then read at 37° C. in a SpectraMax M2 plate reader (λex=380 nm and λem=460 nm). Activity was quantified as the rate of change in fluorescence, which corresponds to the rate of substrate cleavage. IC50 values were determined as the concentration of inhibitor that produced 50% of the rate of change of control wells without any inhibitor. For compounds with activity <1 μM, the assay was repeated with a lower concentration range, typically from 10-1000 nM.
Measurement: IC50 > 65000 nM (pChEMBL 4.186999797821045)
Descriptors: MW 401.47, ALogP 2.9, HBA 6, HBD 2, PSA 93.25, QED 0.69
Compound (SMILES): CC(C)(C)C(=O)NCc1nc2cc(C(F)(F)F)cc(C(F)(F)F)c2[nH]1
InChIKey: YGHBOTVREODCQQ-UHFFFAOYSA-N
Target: Voltage-dependent N-type calcium channel subunit alpha-1B (SINGLE PROTEIN), Homo sapiens
UniProt: Q00975
Assay: High-Throughput Cav2.2/Kir2.3 T-Type Fluorescent Assay: Cells were plated in 384-well, clear-bottom, black-walled, poly-D-lysine coated plates (Becton Dickinson, Franklin Lake, N.J.) 2 days prior to use in the FLIPR assay. 100 μL of cells (1.4×106 cell/mL) containing doxycyline (Sigma-Aldrich, 1.5 μg/mL; to induce channel expression) were added to each well using a Multidrop (Thermo Scientific, Waltham, Mass.) and were maintained in 5% CO2 incubator at 37° C. On the morning of the assay, cells were transferred to a 5% CO2 incubator at 29° C. Cells can then be washed with a wash buffer containing (in mM): 118 NaCl, 18.4 HEPES, 11.7 D-glucose, 2 CaCl2, 0.5 MgSO4, 4.7 KCl, 1.2 KH2PO4, pH adjusted to 7.2 with NaOH. 4.4 μM of the fluorescent indicator dye, Fluo-4 (Invitrogen), prepared in pluronic acid (Sigma-Aldrich), were loaded into the wells and incubated for 45 minutes at 29° C. in 5% CO2. Cells were then rinsed with either a 2 mM KCl closed-state buffer (in mM: 138.5 NaCl, 10 HEPES, 10 D-glucose, 1 CaCl2, and 2 KCl, with the pH adjusted to 7.4 with NaOH) when performing the closed-state assay or 12.5 mM KCl inactivated-state buffer (in mM: 128 NaCl, 10 HEPES, 10 D-glucose, 1 CaCl2, and 12.5 mM KCl, with the pH adjusted to 7.4 with NaOH) when performing the inactivated-state assay. Concentration-dependent response curves were generated from 5 mM stock solutions prepared in DMSO (Sigma-Aldrich) and diluted in either the 2 mM KCl buffer or 12.5 mM KCl buffer and incubated for 20 minutes at 29° C. in 5% CO2. Calcium entry was evoked with an addition of 130 mM KCl stimulation buffer (in mM: 10.5 NaCl, 10 HEPES, 10 D-glucose, 1 CaCl2, and 130 KCl, with the pH adjusted to 7.4 with NaOH) for both the closed-state or inactivated-state assay. A change in the Fluo-4 fluorescence signal was assessed using FLIPRTETRA™ instrument (Molecular Devices, Sunnyvale, Calif.) for 3 minutes following the elevation of extracellular KCl using an illumination wavelength of 470-495 nm with emissions recorded at 515-575 nm.
Measurement: IC50 = 6100 nM (pChEMBL 5.210000038146973)
Descriptors: MW 367.29, ALogP 4.26, HBA 2, HBD 2, PSA 57.78, QED 0.78
Compound (SMILES): COc1cn(Cc2ccccc2)c(Nc2cc(Cl)c(Cl)cc2Cl)nc1=O
InChIKey: XYNZBVKWNYDRHH-UHFFFAOYSA-N
Target: P2X purinoceptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q99572
Assay: Evaluation of a Human P2X7 Receptor Inhibitory Activity: Stably expressing cell line (1321N1 cell transfected with the human P2X7 receptor gene (GenBank accession number NM_002562.5 including T606C and G952A SNP)) was used. The cells were seeded in a 384-well microtiter plate at a concentration of 8000 cells/well and cultured in the medium (10% fetal bovine serum, 25 mM HEPES, 1% penicillin and streptomycin in DMEM) for one day at 37° C. under 5% carbon dioxide atmosphere. After replacing with 20 μL of the HBSS buffer (20 mM HEPES, 55.6 mM D-glucose, 1×HBSS(−), pH7.4-7.5), 15 μL of 17.3 μM Yo-Pro solution in the HBSS buffer was added. The plate was placed in high-throughput cellular screening system FLIPR TETRA (Molecullar Devices, LLC.) and 15 μL of 130 μM BzATP solution in the HBSS buffer was added. Measurement of fluorescence intensity by FLIPR TETRA was started. After eight minutes, 15 μL of DMSO solutions containing different concentrations of the compound of the present invention as prepared by dilution with the HBSS buffer were dispensed to each well through the built-in automatic dispenser, and the measurement of fluorescence intensity was continued for 20 minutes. The maximum fluorescence intensity without the compound of the present invention is calculated as 0% inhibition and the maximum fluorescence intensity when the reference compound was added is calculated as 100% inhibition. Changing values of fluorescence intensity by the compound of the present invention were calculated by difference between maximum and minimum fluorescence intensity for 20 minutes. IC50 was calculated using logistic approximation.
Measurement: IC50 = 300 nM (pChEMBL 6.519999980926514)
Descriptors: MW 410.69, ALogP 5, HBA 5, HBD 1, PSA 56.15, QED 0.6
Compound (SMILES): Cc1cc(Cl)ccc1Oc1ncc(-c2cc(F)c(C(=O)NS(C)(=O)=O)cc2C)cc1Cl
InChIKey: BMGYPEZINIUNMQ-UHFFFAOYSA-N
Target: Sodium channel protein type 5 subunit alpha (SINGLE PROTEIN), Homo sapiens
UniProt: Q14524
Assay: Nav 1.5 In Vitro PX Assay: 293 cells stably transfected with human Nav 1.5 were recorded in whole cell voltage clamp mode with the PatchXpress automated electrophysiology system according the manufacturer's specifications (Molecular Devices, LLC, Sunnyvale, Calif.). Cells were held at a holding potential of −50 mV to inactivate sodium channels. To elicit sodium currents the voltage was changed to −120 mV to recover a portion of the channels, followed by delivery of test pulses of 20 msec duration to 0 mV, at 0.1 Hz. A single concentration of test compound was applied to cells for a duration of 5 minutes. Peak sodium current was measured at the end of the compound addition period to determine percent inhibition. A minimum of two cells were tested per concentration.
Measurement: IC50 > 3000 nM (pChEMBL 5.5229997634887695)
Descriptors: MW 483.35, ALogP 5.29, HBA 5, HBD 1, PSA 85.36, QED 0.53
Compound (SMILES): CS(=O)(=O)c1cncc(-c2ccnc(-c3ncc(C4CCC4)[nH]3)c2)c1
InChIKey: NVVXWUFWBQZGEV-UHFFFAOYSA-N
Target: Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform (SINGLE PROTEIN), Homo sapiens
UniProt: O00329
Assay: PI3Kδ Scintillation Proximity Assay: The kinase reaction was conducted in polystyrene 384-well Greiner Bio-one white plate from Thermo Fisher Scientific in a final volume of 25 μL. Inhibitors were first diluted serially in DMSO and added to the plate wells before the addition of other reaction components. The final concentration of DMSO in the assay was 2%. The PI3Kδ assay was carried out at room temperature in 20 mM MOPS, pH 6.7, 10 mM MgCl2, 5 mM DTT and CHAPS 0.03%. Reactions were initiated by the addition of ATP, the final reaction mixture consisted of 20 μM PIP2, 2 μM ATP, 0.5 μCi [γ-33P] ATP, 3.4 nM PI3Kδ. Reactions were incubated for 120 min and terminated by the addition of 40 μL SPA beads suspended in quench buffer: 163 mM potassium phosphate pH 7.8, 20% glycerol, 25 mM EDTA. The final concentration of SPA beads is 1.0 mg/mL. After the plate sealing, plates were shaken overnight at room temperature and centrifuged at 1500 rpm for 10 min, the radioactivity of the product was determined by scintillation counting on Topcount (Perkin-Elmer). IC50 determination was performed by fitting the curve of percent of the solvent control activity versus the log of the inhibitor concentration using the GraphPad Prism 6.0 software.
Measurement: IC50 < 50 nM (pChEMBL 7.301000118255615)
Descriptors: MW 354.44, ALogP 3.2, HBA 5, HBD 1, PSA 88.6, QED 0.78
Compound (SMILES): COc1cc(NC(=O)c2nn(CC3CCOC3)c3ccccc23)ccc1-c1n[nH]c(=O)c2ccccc12
InChIKey: GDOHYRVVOGERKZ-UHFFFAOYSA-N
Target: Rho-associated protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O75116
Assay: In Vitro Assay: The effectiveness of compounds of the present invention as ROCK inhibitors can be determined in a 30 μL assay containing 20 mM HEPES, pH 7.5, 20 mM MgCl2, 0.015% Brij-35, 4 mM DTT, 5 μM ATP and 1.5 μM peptide substrate (FITC-AHA-AKRRRLSSLRA-OH). Compounds were dissolved in DMSO so that the final concentration of DMSO was <2%, and the reaction was initiated with Rho kinase variants. After incubation, the reaction was terminated by the addition of EDTA and the phosphorylated and non-phosphorylated peptides separated using a LABCHIP® 3000 Reader (Caliper Life Sciences). Controls consisted of assays that did not contain compound, and backgrounds consisted of assays that contained enzyme and substrate but had EDTA from the beginning of the reaction to inhibit kinase activity. Compounds were tested in dose-response format, and the inhibition of kinase activity was calculated at each concentration of compound. The inhibition data were fit using a curve-fitting program to determine the IC50; i.e., the concentration of compound required to inhibit 50% of kinase activity.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 495.54, ALogP 4.24, HBA 7, HBD 2, PSA 111.13, QED 0.36
Compound (SMILES): Cn1cnc(-c2cc(Cl)c(F)c(C(=O)NNS(=O)(=O)C3CC3)c2)c1
InChIKey: FGXUGDLDOLMKBR-UHFFFAOYSA-N
Target: Histone acetyltransferase KAT6A (SINGLE PROTEIN), Homo sapiens
UniProt: Q92794
Assay: KAT-6A Enzyme Assay: KAT-6A. Enzyme assay buffer was 50 mM Tris pH 8.0, 0.002% Tween20, 0.005% bovine skin gelatin, and 1 mM dithiothreitol (DTT). For determination of IC50values, compounds were serially diluted with 2% (v/v) DMSO in the final reaction, pre-incubating each dilution of each compound with 40 μL of assay buffer containing KAT-6A enzyme (12.5 nM final concentration). 10 μL of assay buffer containing 1 μM peptide substrate and 1 μM acetyl coenzyme A (final concentrations) was added. Reactions (50 μL total) were then carried out at 25° C. for 90 minutes. Reactions were terminated by the addition of 0.5% formic acid (final concentration), and a sample of each reaction was analyzed by SAMDI Tech, Inc. (Chicago, Ill.) using self-assembled monolayer desorption/ionization time-of-flight mass spectrometry (Mrksich, M. (2008) Mass spectrometry of self-assembled monolayers: a new tool for molecular surface science. ACS Nano 2, 7-18).
Measurement: IC50 > 100000 nM (pChEMBL 4)
Descriptors: MW 372.81, ALogP 1.61, HBA 5, HBD 2, PSA 93.09, QED 0.78
Compound (SMILES): CC[C@@H](NC(=O)c1ccc(Cc2cc(C)n[nH]c2=O)c(C)c1)C(=O)N1[C@H](c2cccc(F)c2)CC[C@@H]1C(C)(C)O
InChIKey: YMQDVZRPUNKADE-KWXIBIRDSA-N
Target: Calcitonin gene-related peptide type 1 receptor (SINGLE PROTEIN), Homo sapiens
UniProt: Q16602
Assay: Determination of Binding Affinity for CGRP Receptor by Radioligand Binding Assay in SK-N-MC Cell Membranes: The binding affinity assay of compounds for human CGRP receptor was carried out by inhibition of radiolabeled ligand [125I]-CGRP binding in human neuroblastoma cell line SK-N-MC cell membranes.Cell membranes prepared from SK-N-MC cells expressing CGRP receptors endogenously (Muff et al., Ann N Y Acad Sci. 1992; 657: 106-116) were used for radioligand binding assay. Radioligand binding assay was performed using 96-well microplate in a total volume of 200 μL in each well. A 2.5 μL of serial dilution of compound dissolved in dimethylsulfoxide (DMSO) was mixed with SK-N-MC cell membranes (40 μg membrane protein per well) and [125I]-CGRP (PerkinElmer NEX354, final concentration of 150 pM) in an assay buffer consisting of 50 mM Tris-HCl, 5 mM MgCl2 and 0.1% bovine serum albumin (pH 7.4). The assay plate was incubated with shaking on a plate shaker at room temperature for 90 minutes. The incubation was terminated by filtration through a GF/C glass fiber filter plate (Merck Millipore) pre-soaked with 0.3% polyethyleneimine (PEI). Filters were washed 4 times with 300 μL of ice-cold assay buffer. After drying the filter plate, 100 μL of scintillation fluid (PerkinElmer, MicroScint-20) was added to each well and the radioactivity was counted using a TopCount NXT (PerkinElmer). Non-specific binding was determined in the presence of 1.25 μM unlabelled human α-CGRP (Bachem). The radioactivity was converted to the percent of specific binding using the equation below.% ⁢ ⁢ of ⁢ ⁢ specific ⁢ ⁢ binding = ( Y - Y ⁢ ⁢ min ) ( Y ⁢ ⁢ max - Y ⁢ ⁢ min ) × 100 [ Number ⁢ ⁢ 1 ]In the formulae, Y is observed radioactivity, Ymax is total bound activity, and Ymin is non-specific bound activity.From these data, the concentration of compound required for 50% inhibition of radioligand binding (IC50) was determined using Prism (GraphPad Inc.). The IC50 value is then converted to the equilibrium dissociation constant (Ki) using the Cheng-Prusoff equation below (Cheng & Prusoff (1973) Biochem. Pharmacol. 22, 3099-3108).Ki = IC 50 1 + [ L ] Kd [ Number ⁢ ⁢ 2 ]In the formulae, [L] is the concentration of radioligand, Kd is the apparent dissociation constant of the radioligand for the receptor as determined by saturation binding assay with [125I]-CGRP.
Measurement: IC50 = 0.31 nM (pChEMBL 9.510000228881836)
Descriptors: MW 548.66, ALogP 4.13, HBA 5, HBD 3, PSA 115.39, QED 0.39
Compound (SMILES): C[C@@H]1CCCN(C(=O)c2cc(Cl)ccc2-c2ncccn2)[C@@H]1CNc1ncc(Cl)cn1
InChIKey: YHWJWGGNLJCUJI-AUUYWEPGSA-N
Target: Orexin receptor type 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O43614
Assay: Cell-based Functional Assay: Measurement of [Ca2+]i using a FLIPR: CHO-OX1 or CHO-OX2 cells are seeded into black-walled clear-base 384-well plates (Costar) at a density of 20,000 cells per well in F12-K medium supplemented with 10% FBS and selection antibiotic (500 ug/ml G418 or 15 ug/ml Blasticidin) and cultured overnight. The cells are incubated with equal volume of calcium4 loading buffer (Molecular Devices, Inc.) containing 2.5 mM probenecid at 37° C. for 30 min, followed by putative OX1 or OX2 receptor antagonists (dose-range 0.1 nM-10 μM) for another 30 min.
Measurement: IC50 > 5000 nM (pChEMBL 5.301000118255615)
Descriptors: MW 457.37, ALogP 4.59, HBA 6, HBD 1, PSA 83.9, QED 0.6
Compound (SMILES): CC1(CS(=O)(=O)c2ccc(OC/C(=C/F)CN)cc2)CCN(C(=O)C(C)(C)C)CC1
InChIKey: SQXPDICVRDNITJ-GHRIWEEISA-N
Target: Amine oxidase [flavin-containing] A (SINGLE PROTEIN), Homo sapiens
UniProt: P21397
Assay: SSAO Activity Assay: Amine oxidase activity of recombinant hSSAO, hMAO-A, and hMAO-B isoforms are measured using the MAO-Glo assay kit (Promega, V1402). Ten nL test compounds (with DMSO as vehicle, 0.1% v/v for hSSAO, hMAO-A and hMAO-B) were added into assay plates by Echo, and pre-incubated with 5 μL of enzyme for 30 mins at room temperature before the addition of 5 μL of luminogenic substrate. The substrate concentration is 40 μM for human recombinant SSAO, 40 μM for human recombinant MAO-A, and 4 μM for human recombinant MAO-B. The hSSAO and hMAO-A assays were conducted in the MAO-A reaction buffer in the kit, and the MAO-B assay was conducted in the MAO-B reaction buffer. Oxidation of the substrate was conducted for 1 hr, before the addition of detecting reagent according the manufacture's protocol. The IC50 value of the tested compounds was calculated by fitting the dose response curve using a 4-parameter non-linear regression routine.
Measurement: IC50 > 30000 nM (pChEMBL 4.5229997634887695)
Descriptors: MW 440.58, ALogP 3.33, HBA 5, HBD 1, PSA 89.7, QED 0.7
Compound (SMILES): Cc1ccc(NC(=O)c2ccnc(C(F)(F)F)c2)cc1-c1cc(N2CCOCC2)nc(N2CCOCC2)c1
InChIKey: QDHRVJSENVYTRB-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 = 0.24 nM (pChEMBL 9.619999885559082)
Descriptors: MW 527.55, ALogP 4.4, HBA 7, HBD 1, PSA 79.82, QED 0.53
Compound (SMILES): N#Cc1ccc(CN(C(=O)c2cc(-c3ccccc3)on2)c2cnn(Cc3ccc(C#N)cc3)c2)cc1
InChIKey: DDBROFJUBVEPSJ-UHFFFAOYSA-N
Target: Stearoyl-CoA desaturase 5 (SINGLE PROTEIN), Homo sapiens
UniProt: Q86SK9
Assay: Compound Profiling Methods: Strains expressing SCD1 or SCD5 as the sole desaturase, the human SCD1 and SCD5 genes were used to evaluate inhibition of SCD1/SCD5 using reduced growth as a surrogate for SCD inhibition. These yeast strains express human SCD1 or SCD5 from a plasmid harbored in a strain in which the yeast OLE1 gene is deleted.All compound profiling experiments were performed using the same basic protocol. Yeast were cultured using standard techniques in complete synthetic media lacking uracil and containing yeast nitrogen base supplemented with 2% (w/v) glucose (SD-Ura) Starter cultures were inoculated in 3 mL SD-Ura media containing 0.01% tween and 0.2 mM palmitoleic and oleic acid. Cultures were incubated overnight in a 30° C. shaker incubator (225 rpm). Saturated morning cultures were centrifuged, washed in SD-Ura media lacking TWEEN-20 and fatty acids, and then diluted 1:20 in fresh SD-Ura media also lacking TWEEN-20 and fatty acids. Cells were grown for 6 h to an  (optical density) of 0.4-0.8 at 30° C. with shaking.Compound stocks (10 mM in 100% DMSO) were arrayed into 384-round well, v-bottom polypropylene plates and diluted according to indicated dilution factors. Compound administration was performed in two separate steps. First, 15 μL of SD-Ura was dispensed into clear 384-well assay plates using a MULTIDROP Combi reagent dispenser. The diluted compound stock plates were then applied to the assay plates using an automated workstation (Perkin Elmer JANUS) outfitted with a 384-pin tool containing slotted pins that deliver 100 nL of compound. The cultures described above were centrifuged and washed with media lacking TWEEN-20 or oleic and palmitoleic acids. Cultures were then resuspended at a 2-fold concentrated  of 0.02 (final  of 0.0.01) in SD-Ura. 15 μL of diluted culture was then dispensed into the pinned assay plate to achieve 30 μL of the 1× culture (0.01) and a top drug concentration of 33.3 μM.After yeast delivery, assay plates were incubated under humidified conditions at 30° C. for 40 h. Yeast growth was monitored by reading the  of each well using a microplate reader (Perkin Elmer EnVision). Data were analyzed as follows. Raw data were processed by background subtracting and converting values to a percent of the nontreated condition for that strain [(EXP-0.035)/(DMSO-0.035)×100%].
Measurement: IC50 > 45000 nM (pChEMBL 4.3470001220703125)
Descriptors: MW 484.52, ALogP 5.18, HBA 7, HBD 0, PSA 111.74, QED 0.31
Compound (SMILES): C[C@@H]1Cc2c([nH]c3ccccc23)[C@@H](c2c(F)cc(OCCNCCC(F)F)cc2F)N1CC(C)(C)F
InChIKey: PEPBBPQEUYVKQU-AKJBCIBTSA-N
Target: Estrogen receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P03372
Assay: MCF-7 ER Down-Regulation Assay: The ability of compounds to down-regulate Estrogen Receptor (ER) numbers was assessed in a cell based immuno-fluorescence assay using the MCF-7 human ductal carcinoma breast cell line.
Measurement: IC50 = 0.14 nM (pChEMBL 9.850000381469727)
Descriptors: MW 509.56, ALogP 6.15, HBA 3, HBD 2, PSA 40.29, QED 0.25
Compound (SMILES): CC1CCCC(c2ccc(-c3cc(Cl)ccc3-n3cnnn3)c[n+]2[O-])c2cccc(c2)-c2ccc(C#N)cc2NC1=O
InChIKey: MJYJOBMDCRLLNJ-UHFFFAOYSA-N
Target: Kallikrein-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P06870
Assay: Kallikrein Assay: The effectiveness of a compound of the present invention as an inhibitor of Kallikrein can be determined using a relevant purified serine protease, and an appropriate synthetic substrate. The rate of hydrolysis of the chromogenic or fluorogenic substrate by the relevant serine protease was measured both in the absence and presence of compounds of the present invention. Assays were conducted at rt or at 37° C. Hydrolysis of the substrate resulted in release of amino trifluoromethylcoumarin (AFC), which was monitored spectrofluorometrically by measuring the increase in emission at 510 nm with excitation at 405 nm. A decrease in the rate of fluorescence change in the presence of inhibitor is indicative of enzyme inhibition. Such methods are known to one skilled in the art. The results of this assay are expressed as the inhibitory constant, Ki.Kallikrein determinations were made in 50 mM HEPES buffer at pH 7.4 containing 150 mM NaCl, 5 mM CaCl2, and 0.1% PEG 8000 (polyethylene glycol; Fisher Scientific). Determinations were made using purified Human plasma Kallikrein at a final concentration of 0.5 nM (Enzyme Research Laboratories) and the synthetic substrate, Acetyl-K-P-R-AFC (Sigma # C6608) at a concentration of 100 mM.Activity assays were performed by diluting a stock solution of substrate at least tenfold to a final concentration ≤0.2 Km into a solution containing enzyme or enzyme equilibrated with inhibitor. Times required to achieve equilibration between enzyme and inhibitor were determined in control experiments. The reactions were performed under linear progress curve conditions and fluorescence increase measured at 405 Ex/510 Em nm. Values were converted to percent inhibition of the control reaction (after subtracting 100% Inhibition value). IC50 was determined by inflection point from a four parameter logistic curve fit. Ki was calculated using the Cheng Prusoff equation, Ki=IC50/(1+([S]/Km)).
Measurement: Ki = 1.85 nM (pChEMBL 8.729999542236328)
Descriptors: MW 576.06, ALogP 6.05, HBA 7, HBD 1, PSA 123.43, QED 0.21
Compound (SMILES): N#Cc1ccccc1S(=O)(=O)Nc1cccc(-c2ccc([C@H]3C[C@@H]3N)cn2)c1
InChIKey: CQARUEXTPAIHPL-MOPGFXCFSA-N
Target: Amine oxidase [flavin-containing] B (SINGLE PROTEIN), Homo sapiens
UniProt: P27338
Assay: Monoamine Oxidase Assays: Assays were conducted in 96-well black plates with clear bottom (Corning) in a final volume of 100 μL. The assay buffer was 100 mM HEPES, pH 7.5. Each experiment was performed in triplicate within the same experiment. Briefly, a fixed amount of MAO (0.25 μg for MAO-A and 0.5 μg for MA-B) was incubated on ice for 15 minutes in the reaction buffer, in the absence and/or in the presence of various concentrations of inhibitor (e.g., from 0 to 50 μM, depending on the inhibitor strength). Tranylcypromine (Biomol International) was used as a control for inhibition. After leaving the enzyme(s) interacting with the inhibitor, 60 to 90 μM of kynuramine was added to each reaction for MAO-B and MAO-A assay respectively, and the reaction was left for 1 hour at 37° C. in the dark. The oxidative deamination of the substrate was stopped by adding 50 μL (v/v) of NaOH 2N. The conversion of kynuramine to 4-hydroxyquinoline, was monitored by fluorescence (excitation at 320 nm, emission at 360 nm) using a microplate reader (Infinite 200, Tecan).
Measurement: Ki > 1000 nM (pChEMBL 6)
Descriptors: MW 390.47, ALogP 3.24, HBA 5, HBD 2, PSA 108.87, QED 0.7
Compound (SMILES): N#Cc1ccc(-c2cnccc2SCC2CC(C(=O)O)C2)c2ccccc12
InChIKey: COYVNQIHXMRGKL-UHFFFAOYSA-N
Target: Solute carrier family 22 member 12 (SINGLE PROTEIN), Homo sapiens
UniProt: Q96S37
Assay: Bioactivity Assay: Human kidney embryonic cells HEK-293T were grown in a petri dish (diameter=10 cm) containing DMEM and 10% of bovine fetal serum culture solution, and incubated in an 5% of carbon dioxide-containing incubator at 37° C. Plasmids carrying human URAT1 were transfected to HEK-293T cells using TransIT-293 (Mirus Bio LLC). After 72 hours, the petri dish containing HEK-293T cells transfected with URAT1 was removed from the incubator and the cells were inoculated on Poly-D-Lysine Coated 96-well Plates at a density of 60,000 cells per well. After the cells on the 96-well plates were grown overnight (at least 12 hours) in an incubator at 37 degrees, these cells were gently rinsed 3 times with warm and no chloride ions-containing HBSS buffer (125 mM sodium gluconate, 4.8 mM potassium gluconate, 1.3 mM calcium gluconate, 1.2 mM monopotassium phosphate, 1.2 mM magnesium sulfate, 5.6 mM glucose, 25 mM HEPES, pH 7.4). 50 microliter of HBSS buffer (not containing chloride ions) containing 0.2 microcurie of 14C-uric acid and compounds of the present application or benzbromarone, and vector was added in each well, then the cell plates were put back to the incubator at 37 degrees. After 5 min, the buffer was removed from cell wells, added with 100 microliter of ice-cold and no chloride ions-containing HBSS buffer to gently rinse cells within wells so as to stop them from absorbing 14C-uric acid, the rinsing was repeated 3 times in the same manner. 150 microliter of cell lysate (100 mM of NaOH) was added in each well. Cell plate was placed on a vibrating plate and vibrated for 10 min at a speed of 600 rpm such that the cells were completely lysed. The cell plate was put in a centrifuge and spun for 5 min at a speed of 1000 rpm, then 45 microliter of supernatant was sucked out from each well and transferred to 96-well plate (Isoplate-96 Microplate from PerkinElmer).
Measurement: IC50 > 1000 nM (pChEMBL 6)
Descriptors: MW 374.47, ALogP 4.98, HBA 4, HBD 1, PSA 73.98, QED 0.64
Compound (SMILES): Cc1cc(-c2[nH]c3ccc(C(C)C(=O)N(C)C4CCCNC4)cc3c2C(C)C)ccn1
InChIKey: PBRKYBJUVSMVBA-UHFFFAOYSA-N
Target: Toll-like receptor 8 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NR97
Assay: TLR7/8/9 Inhibition Reporter Assays: 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 = 96 nM (pChEMBL 7.019999980926514)
Descriptors: MW 418.59, ALogP 4.98, HBA 3, HBD 2, PSA 61.02, QED 0.61
Compound (SMILES): O=C(NC(CO)c1cccc(F)c1)c1cccc(-c2ccc3[nH]ncc3c2)c1
InChIKey: NENOOZASAODLIG-UHFFFAOYSA-N
Target: Rho-associated protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: O75116
Assay: In Vitro Evaluation of the Inhibitory Activity Against ROCK Protein Kinase: Assay buffer solution: 20 mM 4-hydroxyethylpiperazine ethanesulfonic acid (pH 7.5), 10 mM magnesium chloride, 1 mM ethylene glycol-bis-(2-aminoethyl)tetraacetic acid, 0.02% polyethylene glycol monododecyl ether, 0.02 mg/mL bovine serum albumin, 0.1 mM sodium vanadate, 2 mM dithiothreitol, 1% DMSO.Experimental Operation:The freshly prepared buffer solution was added to ROCK protein kinase substrate (Long S6 Kinase substrate peptide), at a concentration of 20 μM, then 1 nM ROCK protein kinase was added thereto and stirred evenly. Echo550 was used to add a series of DMSO dilutions containing the test compound (starting from 10 μM, serially diluted by 3 times), the solution was pre-incubated at room temperature for 20 minutes, then 33P-ATP (radiation intensity 10 μCi/μL) was added to initiate the reaction, and the reaction was performed at room temperature for two hours. Then the solution was filtered by P81 ion exchange paper (Whatman #3698-915) and washed with 0.75% phosphoric acid. The radiation intensity was determined by Filter-Binding method.
Measurement: IC50 = 6 nM (pChEMBL 8.220000267028809)
Descriptors: MW 375.4, ALogP 3.83, HBA 3, HBD 3, PSA 78.01, QED 0.5
Compound (SMILES): Cn1cc(-c2cccc(-c3ncc(-c4cnn(C)c4)c(N[C@@H]4CC[C@H](N)C4)n3)c2)cn1
InChIKey: UABWFXULANPTAV-VQTJNVASSA-N
Target: Interleukin-1 receptor-associated kinase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NWZ3
Assay: Enzymatic Assay: IRAK4 is a human purified recombinant enzyme (His-TEV-IRAK1 (194-712). IRAK4 hydrolyses ATP, autophosphorylates and phosphorylates a Serine/Threonine generic peptidic substrate (STK: 61ST1BLC from CisBio International based in Bagnols/Cèze FR).Measurement of IRAK-4 inhibition was performed in streptavidin coated 384well FlashPlate (PerkinElmer #SMP410A). His-TEV-IRAK4 (20 ng/well), ATP (2 μM, [33P]ATP 0.25 Ci/well), STK1-biotin peptide (300 nM) and compounds in DMSO (range of concentrations from 20 M to 1 nM) or controls (2% DMSO) were incubated for 3 hours at 30° C. in assay buffer: Hepes pH7.0 50 mM, Fatty acid-free BSA 0.1%, Dithiothreitol DTT 2 mM, MgCl2 10 mM, EGTA 0.5 mM, Tween-20 0.01%, MnCl2 5 mM.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 414.52, ALogP 3.24, HBA 8, HBD 2, PSA 99.47, QED 0.52
Compound (SMILES): COc1cc(-c2c[nH]c3nc(Nc4ccc(CN5CCN(C)CC5)cc4)nc(OC)c23)cc(OC)c1OC
InChIKey: FKWHTFASCNDJAH-UHFFFAOYSA-N
Target: Tyrosine-protein kinase Mer (SINGLE PROTEIN), Homo sapiens
UniProt: Q12866
Assay: Mer Kinase Assay: Certain compounds of formula (I) were tested for their potency in inhibiting Mer kinase. Inhibition of Mer kinase activity by a test compound was calculated by AlphaScreen (PerkinElmer 6760620M). Standard assay conditions included 2 ng of recombinant Mer kinase (SignalChem) with 5 ng Poly-(GT)-Biotin (Cisbio) in the assay buffer, i.e., 10 μM ATP (Sigma), 8 mM MOPs, pH7.0 (Sigma M-1254), 0.2 mM EDTA (Sigma E-6758), 0.5% glycerol (J. T Baker 2136-1), 0.1 mg/ml BSA (Bio-Rad 500-0007), 0.01% 2-mercaptoethanol (BDH 441433A), 0.001% Brij35 (Sigma P1254), 10 mM MgCl2, and 10 mM MnCl2 in a final volume of 25 μL. Reactions were incubated at 30° C. for 30 minutes and stopped by adding 5 μL of 50 mM EDTA. Product analysis was performed using the AlphaScreen kit and counted with Enspire Alpha (PerkinElmer). Screen values of inhibitors were determined after carrying out assays with each compound at serially diluted concentrations in duplication. Results were analyzed using linear regression software (GraphPad Prism 4; GraphPad Software Inc.).
Measurement: IC50 = 700 nM (pChEMBL 6.159999847412109)
Descriptors: MW 518.62, ALogP 4.15, HBA 9, HBD 2, PSA 97, QED 0.34
Compound (SMILES): COc1cccc2c(=O)n(-c3cccc(Br)c3C)c(=O)n(C)c12
InChIKey: BPANJUDTJIHZHQ-UHFFFAOYSA-N
Target: Tyrosine-protein kinase JAK2 (SINGLE PROTEIN), Homo sapiens
UniProt: O60674
Assay: Jak2 Tyrosine Kinase Assay: Compounds with activity against Jak2 tyrosine kinase have been observed to cause thrombocytopenia, anemia and neutropenia in human patients in clinical trials (see for example, see Pardanani, A., Leukemia, 26:1449 (2012)). Jak2 signaling occurs thru EPO and TPO, which control erythrocyte and platelet proliferation, respectively. Thus, inhibition of Jak2 tyrosine kinase can potentially lead to side-effects in the clinic. Btk inhibitors with improved selectivity over Jak2 tyrosine kinase are desired in order to minimize off target side-effects related to the inhibition of Jak2 tyrosine kinase.The assays were performed in V-bottom 384-well plates. The final assay volume was 30 μl prepared from 15 μl additions of enzyme and substrates (fluoresceinated peptide and ATP) and test compounds in assay buffer (100 mM HEPES pH 7.4, 10 mM MgCl2, 25 mM beta-glycerolphosphate, 0.015% Brij 35 surfactant and 4 mM DTT). The reaction was initiated by the combination of Jak2 tyrosine kinase with substrates and test compounds. The reaction mixture was incubated at room temperature for 60 minutes and terminated by adding 45 μL of 35 mM EDTA to each sample. The reaction mixture was analyzed on the Caliper LABCHIP® 3000 by electrophoretic separation of the fluorescent substrate and phosphorylated product. Inhibition data were calculated by comparison to no enzyme control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition. The final concentration of reagents in the assays is ATP, 30 μM; Jak2 fluorescent peptide, 1.5 μM; Jak2, 1 nM; and DMSO, 1.6%. Dose response curves were generated to determine the concentration required inhibiting 50% of kinase activity (IC50). Compounds were dissolved at 10 mM in DMSO and evaluated at eleven concentrations, each in duplicate. IC50 values were derived by non-linear regression analysis.
Measurement: IC50 = 1800 nM (pChEMBL 5.75)
Descriptors: MW 375.22, ALogP 2.77, HBA 5, HBD 0, PSA 53.23, QED 0.69
Compound (SMILES): Nc1sc2cccnc2c1C(=O)Nc1cnccc1N1CCC[C@@H](N)C1
InChIKey: CVJRXQZCKQLJHX-LLVKDONJSA-N
Target: Serine/threonine-protein kinase pim-2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9P1W9
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 pre-incubated 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 > 2000 nM (pChEMBL 5.698999881744385)
Descriptors: MW 368.47, ALogP 2.45, HBA 7, HBD 3, PSA 110.16, QED 0.65
Compound (SMILES): Fc1cccc(C2(Nc3ncc(-c4nnc(C(F)F)o4)cn3)CC2)c1Cl
InChIKey: ZANYNQBDTDMUBD-UHFFFAOYSA-N
Target: Histone deacetylase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q13547
Assay: Enzymatic Activity Assay: All enzymatic reactions were conducted in duplicate at room temperature for 17 hours in a 50 μl mixture containing HDAC assay buffer (50 mM Tris-HCl, pH 7.4, 137 mM NaCl, 2.7 mM KCl, 0.05% Tween 20, 5 μg BSA), an HDAC substrate, an HDAC enzyme, and a test compound. Compound dilution was prepared ten-fold higher than the final concentration of the compounds with 10% DMSO in HDAC assay buffer and 5 μl of the dilution was added to a 50 μl reaction so that the final concentration of DMSO is 1% in all of reactions. After enzymatic reactions, 50 μl of HDAC Developer was added to each well and the plate was incubated at room temperature for an additional 20 minutes. Fluorescence intensity was measured at an excitation of 360 nm and an emission of 460 nm using a Tecan Infinite M1000 or Biotek Synergy microplate reader.The fluorescent intensity data were analyzed using the computer software, Graphpad Prism. In the absence of the compound, the fluorescent intensity (Ft) in each data set was defined as 100% activity. In the absence of HDAC, the fluorescent intensity (Fb) in each data set was defined as 0% activity. The percent activity in the presence of each compound was calculated according to the following equation: % activity=(F−Fb)/(Ft−Fb), where F=the fluorescent intensity in the presence of the compound.
Measurement: IC50 > 30000 nM (pChEMBL 4.5229997634887695)
Descriptors: MW 381.75, ALogP 4.36, HBA 6, HBD 1, PSA 76.73, QED 0.71
Compound (SMILES): O=C1NCCN(CC(F)(F)C2CC(F)CCO2)c2c1oc1ccc(C(F)(F)F)cc21
InChIKey: FEOSTMIHAQUGPS-UHFFFAOYSA-N
Target: Serine/threonine-protein kinase pim-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11309
Assay: Pim-1 Inhibitory Activity Assay: The calculation of the Pim-1 inhibitory activity of the compound was performed using the following solution according to the protocol attached to ADP-Glo Kinase Assay (cat. V9102, Promega). The purified enzyme of human Pim-1 described above was used. (i) Preparation of Solution. The kinase buffer solution (50 mmol/L HEPES (pH 7.5), 5 mmol/L MgCl2, 1 mmol/L DTT, 0.05% BSA) was prepared by dissolving HEPES (Jena Bioscience), MgCl2 (Sigma-Aldrich), DTT (Sigma-Aldrich) and BSA (Sigma-Aldrich) in purified water. The ATP solution (288 μmol/L) was prepared by dissolving 100 mmol/L ATP (Promega) in the kinase buffer solution. The enzyme/substrate solution (0.2 mmol/L Pim-1, 30 μmol/L Pim2tide) was prepared by dissolving Pim-1 (described above) and Pim2tide (custom synthetic product by GenScript USA, the same product as PIM2tide cat. 12-542 by Millipore) in the kinase buffer solution. The test compound solution (containing 12.5% DMSO) was prepared by dissolving the DMSO solution of the test compound in the kinase buffer solution. The vehicle solution (containing 12.5% DMSO) was prepared by dissolving DMSO in the kinase buffer solution. (ii) Method. To a 384-well assay plate (Corning, 4513), the test compound solution or vehicle solution (control) was added by 1 μL/well, the enzyme/substrate solution or kinase buffer solution (blank) was added by 2 μL/well, and the ATP solution was added by 2 μL/well, and they were mixed. After enzymatically reacting at room temperature for 45 minutes, ADP-Glo Reagent (Promega) was added by 5 μL/well, and they were mixed. After reacting at room temperature for 60 minutes, Kinase Detection Reagent (Promega) was added by 10 μL/well, and they were mixed. After reacting at room temperature for 30 minutes, the luminescence amount of each well was measured for 10 msec with a multi-label plate reader EnVision (PerkinElmer).
Measurement: Ki = 0.15 nM (pChEMBL 9.819999694824219)
Descriptors: MW 436.35, ALogP 4.15, HBA 4, HBD 1, PSA 54.71, QED 0.73
Compound (SMILES): N#Cc1ccc(Oc2cn[nH]c2C2CCCN(C(=O)c3cccnc3)C2)cc1
InChIKey: VUUFIJMTEHAGQJ-UHFFFAOYSA-N
Target: Cytochrome P450 11B1, mitochondrial (SINGLE PROTEIN), Homo sapiens
UniProt: P15538
Assay: Inhibition Assay: G-402 cells can be obtained from ATCC (CRL-1440) and were originally derived from a renal leiomyoblastoma.The expression plasmids contains the ORF for either human/cyno CYP11B1 or CYP11B2 under the control of a suitable promoter (CMV-promoter) and a suitable resistance marker (neomycin). Using standard techniques the expression plasmid is transfected into G-402 cells and these cells are then selected for expressing the given resistance markers. Individual cell-clones are then selected and assessed for displaying the desired enzymatic activity using 11-Deoxycorticosterone (Cyp11B2) or 11-Deoxycortisol (Cyp11B1) as a substrate.G-402 cells expressing CYP11 constructs were established as described above and maintained in McCoy's 5a Medium Modified, ATCC Catalog No. 30-2007 containing 10% FCS and 400 μg/ml G418 (Geneticin) at 37° C. under an atmosphere of 5% CO2/95% air. Cellular enzyme assays were performed in DMEM/F12 medium containing 2.5% charcoal treated FCS and appropriate concentration of substrate (0.3-10 uM 11-Deoxycorticosterone, 11-Deoxycortisol or Corticosterone). For assaying enzymatic activity, cells were plated onto 96 well plates and incubated for 16 h. An aliquot of the supernatant is then transferred and analyzed for the concentration of the expected product (Aldosterone for CYP11B2; Cortisol for CYP11B1). The concentrations of these steroids can be determined using HTRF assays from CisBio analyzing either Aldosterone or Cortisol.
Measurement: EC50 = 8.16 nM (pChEMBL 8.09000015258789)
Descriptors: MW 373.42, ALogP 3.49, HBA 5, HBD 1, PSA 94.9, QED 0.76
Compound (SMILES): Cc1cc(Cl)cc(CNC(=O)[C@H](C)NC(=O)[C@H]2C[C@H](c3ccccc3)CN2)c1O
InChIKey: MSXVUCIMTFZUFL-URLQWDBASA-N
Target: Prothrombin (SINGLE PROTEIN), Homo sapiens
UniProt: P00734
Assay: Enzymatic Assay for Thrombin: The thrombin assay utilizes a fluorogenic peptide substrate (Boc-VPR-AMC (R&D Systems) and was run at room temperature in an assay buffer containing 20 mM Hepes, pH 7.4, 140 mM NaCl and 0.1% Tween 20. Assay parameters were adjusted such that the assay was linear with respect to time, enzyme and substrate concentrations. Under these optimized assays conditions, IC50values were equivalent to Ki values, except in a few cases of tight binding inhibitors. Cases of tight binding or possible slow binding inhibitors were handled by the methods described in Copeland R. A. (2013) Evaluation of Enzyme Inhibitors in Drug Discovery. 2nd Ed. John Wiley and Sons, Inc., Chapters 5-7.
Measurement: Ki > 25000 nM (pChEMBL 4.6020002365112305)
Descriptors: MW 415.92, ALogP 2.62, HBA 4, HBD 4, PSA 90.46, QED 0.58
Compound (SMILES): CCN1CC2(CCN(Cc3ccc(Cl)cc3)CC2)O[C@H](C)C1=O
InChIKey: VPHOYQHLVGRJOP-CQSZACIVSA-N
Target: Sigma non-opioid intracellular receptor 1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q99720
Assay: Radioligand Assay: To investigate binding properties of test compounds to human σ1 receptor, transfected HEK-293 membranes and [3H](+) -pentazocine (Perkin Elmer, NET-1056), as the radioligand, were used. The assay was carried out with 7 μg of membrane suspension, 5 nM of [3H](+)-pentazocine in either absence or presence of either buffer or 10 μM Haloperidol for total and non-specific binding, respectively. Binding buffer contained Tris-HCl 50 mM at pH 8. Plates were incubated at 37° C. for 120 minutes. After the incubation period, the reaction mix was then transferred to Multiscreen HTS, FC plates (Millipore), filtered and plates were washed 3 times with ice-cold 10 mM Tris-HCL (pH 7.4). Filters were dried and counted at approximately 40% efficiency in a MicroBeta scintillation counter (Perkin-Elmer) using EcoScint liquid scintillation cocktail Results: As this invention is aimed at providing a compound or a chemically related series of compounds which act as ligands of the σ1 receptor it is a very preferred embodiment in which the compounds are selected which act as ligands of the σ1 receptor and especially compounds which have a binding expressed as Ki which is preferably <1000 nM, more preferably <500 nM, even more preferably <100 nM.
Measurement: Ki < 100 nM (pChEMBL 7)
Descriptors: MW 336.86, ALogP 2.94, HBA 3, HBD 0, PSA 32.78, QED 0.85
Compound (SMILES): Cc1cc(Nc2ncnc3cccc(O[C@@H]4C[C@H]5CC[C@@H](C4)N5C)c23)ccc1Oc1ccn2ncnc2c1
InChIKey: MIBKJUHJDKQUKH-IUTQVRIDSA-N
Target: Epidermal growth factor receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P00533
Assay: Inhibition Assay: EGFR: The compounds' inhibition of target modulation were determined as follows: NCI-H838 cells were sorted in 96 well plates (20000 cells/well) with the DMEM medium containing 1% FBS overnight and then treated with tested compounds at a series of concentrations (3 μM, 0.3 μM, 0.1 μM, 0.03 μM, 0.01 μM, 0.003 μM, 0.001 μM, 0.0001 μM). The plates were incubated for 4 h at 37° C. with 5% CO2 followed by the stimulation of recombinant hEGF (100 ng/ml for 10 Min, RD, Cat #236-EG) and then the EGFR (Y1068) phosphorylation level of cells in each well were measured with MSD Kit (MULTI-SPOT®96 4-Spot HB Prototype EGFR Triplex ANALYTES: pEGFR(Tyr1068), pEGFR(Tyr1173), Total EGFR (Cat # N45ZB-1). The assay is a electrochemiluminescent method (MESO SCALE DISCOVERY) for determining both phosphorylated and total EGFR of cells with an MSD SECTOR® Imager and then the ratio of p-EGFR/total EGFR can be generated by the machine. The percentage of inhibition was used the formula: % inhibition=100×[1−(ratio of sample well−ratio of Min ctrl well)/ (ratio of MaxRatio of Min ctrl well)]. The IC50 values were further calculated as the compounds concentration required for 50% inhibition in best-fit curves using Prism GraphPad 7.0 or Microsoft Xlfit software.
Measurement: IC50 > 10000 nM (pChEMBL 5)
Descriptors: MW 507.6, ALogP 5.52, HBA 9, HBD 1, PSA 89.7, QED 0.32
Compound (SMILES): Cc1ccc(-n2nc(C(C)(C)C)cc2NC(=O)Nc2ccc(Oc3ccnc(Nc4cccc(Cl)c4)n3)c3ccccc23)cc1
InChIKey: PWNRVPJJMBQUQF-UHFFFAOYSA-N
Target: Glycogen synthase kinase-3 alpha (SINGLE PROTEIN), Homo sapiens
UniProt: P49840
Assay: GSK 3α Enzyme Inhibition: The GSK3-α protein (500 ng/mL, 2.5 μL) was mixed with the test compound (2.5 μL at either 4 μg/mL, 0.4 μg/mL, 0.04 μg/mL, or 0.004 μg/mL) for 2 hr at RT. The FRET peptide (8 μM, 2.5 μL), which is a phosphorylation target for GSK3α, and ATP (40 μM, 2.5 μL) were then added to the enzyme/compound mixture and the resulting mixture incubated for 1 hr. Development reagent (protease, 5 μL) was added for 1 hr prior to detection in a fluorescence microplate reader (Varioskan® Flash, ThermoFisher Scientific).
Measurement: IC50 > 16200 nM (pChEMBL 4.789999961853027)
Descriptors: MW 618.14, ALogP 9.25, HBA 7, HBD 3, PSA 105.99, QED 0.16