lovingscience/chembl-v37-raw-activities huggingface dataset:
Compound (SMILES): COCCC(C(=O)Nc1ccc2nn(C)cc2c1)n1cc(OC)c(-c2cc(Cl)ccc2-n2cnc(C(F)(F)F)c2)cc1=O
InChIKey: MCUQCQLBAAKRPX-UHFFFAOYSA-N
Target: Coagulation factor XI (SINGLE PROTEIN), Homo sapiens
UniProt: P03951
Assay: Inhibition Assay: The factor XIa inhibition of the substances according to the invention is determined using a biochemical test system which utilizes the reaction of a peptidic factor XIa substrate to determine the enzymatic activity of human factor XIa. Here, factor XIa cleaves from the peptic factor XIa substrate the C-terminal aminomethylcoumarin (AMC), the fluorescence of which is measured. The determinations are carried out in microtitre plates.Test substances are dissolved in dimethyl sulphoxide and serially diluted in dimethyl sulphoxide (3000 μM to 0.0078 μM; resulting final concentrations in the test: 50 μM to 0.00013 μM). In each case 1 μl of the diluted substance solutions is placed into the wells of white microtitre plates from Greiner (384 wells). 20 μl of assay buffer (50 mM of Tris/HCl pH 7.4; 100 mM of sodium chloride; 5 mM of calcium chloride; 0.1% of bovine serum albumin) and 20 μl of factor XIa from Kordia (0.45 nM in assay buffer) are then added successively. After 15 min of incubation, the enzyme reaction is started by addition of 20 μl of the factor XIa substrate Boc-Glu(OBzl)-Ala-Arg-AMC dissolved in assay buffer (10 μM in assay buffer) from Bachem, the mixture is incubated at room temperature (22° C.) for 30 min and fluorescence is then measured (excitation: 360 nm, emission: 460 nm).
Measurement: IC50 = 8.3 nM (pChEMBL 8.079999923706055)
Descriptors: MW 615.01, ALogP 5.48, HBA 9, HBD 1, PSA 105.2, QED 0.24
Compound (SMILES): Cc1ccc(-c2noc(C)c2COc2cc(C)c(C(=O)NC3CCOCC3)nn2)cn1
InChIKey: BOEVLQCJGHTZLQ-UHFFFAOYSA-N
Target: Gamma-aminobutyric acid receptor subunit alpha-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P14867
Assay: Electrophysiology: Electrophysiological experiments were performed on days 3 to 5 after the micro-injection of mRNA. During the experiment the oocytes were constantly superfused by a solution containing (in mM) NaCl 90, KCl 1, HEPES 5, MgCl2 1, CaCl2 1 (pH 7.4). Oocytes were impaled by two glass microelectrodes (resistance: 0.4 MΩ) which were filled with a solution containing KCl 1M+K-acetate 1.5 M and voltage-clamped to −80 mV. The recordings were performed at room temperature using the Roboocyte two-electrode voltage clamp system (Multichannelsystem). After an initial equilibration period of 1.5 min GABA was added for 1.5 min at a concentration evoking approximately 20% of a maximal current response (EC20). After another rest interval of 2.5 min GABA was again added evoking a response of similar amplitude and shape. 0.5 min after the onset of this second GABA application the test compound, at a concentration corresponding to approximatively 30 fold its Ki, was added while GABA was still present. Current traces were recorded at a digitization rate of 10 Hz during and shortly before and after the GABA application.
Measurement: Ki = 20.8 nM (pChEMBL 7.679999828338623)
Descriptors: MW 423.47, ALogP 2.94, HBA 8, HBD 1, PSA 112.26, QED 0.64
Compound (SMILES): OC[C@@H]1CCCN1c1nc(Nc2cn(-c3cccc(OC(F)(F)F)c3)cn2)nn2cccc12
InChIKey: WQYABMWQUHBVID-HNNXBMFYSA-N
Target: Activin receptor type-1 (SINGLE PROTEIN), Homo sapiens
UniProt: Q04771
Assay: Biochemical assay: Biochemical assays to measure the inhibitory effects of the compounds were performed by ThermoFisher Scientific (Life Technologies). ALK2 inhibition was tested using LanthaScreen Eu Kinase Binding Assay screening protocol.
Measurement: IC50 > 1000 nM (pChEMBL 6)
Descriptors: MW 459.43, ALogP 3.52, HBA 9, HBD 2, PSA 92.74, QED 0.46
Compound (SMILES): CC(C)(C)CNc1c(C#N)cnc2c(C#N)cc(N[C@H](C3=CN(C4(CF)CC4)NN3)c3cccc4ncsc34)cc12
InChIKey: PGBXBQHCOBTCAB-MHZLTWQESA-N
Target: Epidermal growth factor receptor (SINGLE PROTEIN), Homo sapiens
UniProt: P00533
Assay: High Throughput Biochemical Assay: EGFR activity was measured using KinEASE (Cisbio), a time-resolved fluorescence resonance energy transfer (TR-FRET) immunoassay. In this assay, EGFR-catalyzes the phosphorylation of a universal Tyrosine kinase peptide substrate labeled with XL665. Europium conjugated phosphor-tyrosine specific antibody binds the resulting phosphorylated peptide. Formation of phosphorylated peptide is quantified by TR-FRET with Europium as the donor and XL665 the acceptor. The assay was performed in two main steps. The first step is the kinase reaction step and the second step is the detection step with TR-FRET reagents. In brief, test compounds 1:3 serially diluted in DMSO were delivered into Corning white, low volume, non-binding 384 well plates using the Echo 550 acoustic liquid dispenser (Labcyte®). EGFR enzyme (Human EGFR, cytoplasmic domain [669-1210] from Carna Biosciences Cat. No. 08-115) and substrates TK substrate-biotin (included in Cisbio HTRF KinEASE-TK kit Cat. No. 62TK0PEJ) were dispensed into assay plates using a Multi-Flo (Bio-Tek Instruments). The standard 10 μL reaction mixture contained 6 μM ATP (1×Km) or 12 μM ATP (2×Km), 1 μM biotinylated peptide, 0.3 nM EGFR (for 1×Km ATP) or 0.1 nM EGFR (for 2×Km ATP) in reaction buffer (10 mM MOPs, pH 7.0, 1.5% Glycerol, 0.5 mg/ml BSA, 10 mM Mg-Acetate, 1 mM DTT, 0.025% NP-40). After 60 min of incubation at room temperature, 10 μL of Stop and Detect Solution (1:400 Europium Cryptate labeled anti-phosphorylated peptide antibody solution and 125 nM strepavidin-XL665 Tracer in a 50 mM Hepes pH 7.0 detection buffer containing sufficient EDTA) was added. The plate was then further incubated for over 60 minutes at room temperature and read using an Envision 2103 Multilabeled reader (PerkinElmer) with excitation/emission/FRET emission at 340 nm/615 nm/665 nm, respectively.
Measurement: IC50 = 2 nM (pChEMBL 8.699999809265137)
Descriptors: MW 567.7, ALogP 5.87, HBA 10, HBD 4, PSA 124.72, QED 0.21
Compound (SMILES): O=C(NS(=O)(=O)C1CC1)c1ccc(N2C[C@@H]3C[C@H]2C[C@H]3OCc2c(-c3c(Cl)cccc3Cl)noc2C2(F)CC2)c(F)c1
InChIKey: ANTZDLPFNVEJAK-WOGXIUBCSA-N
Target: Bile acid receptor (SINGLE PROTEIN), Homo sapiens
UniProt: Q96RI1
Assay: Binding Assay: The affinity of FXR ligands for the ligand binding domain of FXR was determined using a commercially available human FXR ligand binding assay (LanthaScreen, Thermofisher Cat # PV4833). The purified ligand binding domain of human FXR tagged with GST (glutathiones-S-transferase) is incubated with a terbium labelled anti-GLT antibody and a fluorescein-labelled SRC2-2 peptide (LKEKHKILHRLLQDSSSPV (SEQ ID NO.: 1)). Binding of FXR ligands to the FXR ligand binding domain promotes binding of the fluorescein-labelled SRC2-2 peptide. This causes a FRET signal between the terbium-labelled anti-GST antibody and the fluorescein-labelled SRC peptide which are both bound to the FXR ligand binding domain.Test compounds are dissolved in DMSO and a 3-fold serial dilution series is generated, then further diluted into assay buffer. The compounds are mixed with 5 nM GST-tagged FXR ligand binding domain, 5 nM Tb-labelled anti-GST antibody and 500 nM fluorescein-labelled SRC2-2 peptide in a pH7.4 buffer. The reaction is incubated at room temperature for 1 hour, then the FRET signal is measured as the ratio of the 520 nm/495 nm emission following excitation at 340 nm. The change in FRET signal is plotted against the test article concentration and fit to a 3-parameter logistical equation.
Measurement: EC50 = 3.16 nM (pChEMBL 8.5)
Descriptors: MW 638.52, ALogP 6.15, HBA 7, HBD 1, PSA 101.74, QED 0.3
Compound (SMILES): CC(NC1CC1)c1ccc(-c2ccsc2)c(NC(=O)Nc2cccc(C(F)(F)F)c2)c1
InChIKey: YBZUSMNGINLVBG-UHFFFAOYSA-N
Target: Isocitrate dehydrogenase [NADP], mitochondrial (SINGLE PROTEIN), Homo sapiens
UniProt: P48735
Assay: IDH2 Inhibitory Activity: The inhibitory activity of a compound against IDH2 (R172K, 40-end) was determined by the decrease of a helper factor NADPH. The test compound was pre-incubated with an enzyme and NADPH, and then a reaction was initiated by the addition of a-KG, and performed for 120 minutes under a linear condition. Then, the reaction was terminated by the addition of diaphorase (lipoamide dehydrogenase) and the corresponding substrate resazurin. Diaphorase terminated the IDH2m reaction by decreasing the available helper factor NADPH, which oxidized NADPH to NADP, and reduced resazurin to highly fluorescent resorufin. The amount of remaining helper factor NADPH after a specific reaction time was quantified via an easily detectable fluorophore.Specifically, 2.5 μl of a 3-fold gradient diluted test compound was added to a 384-well plate, and then 5 μl of a reaction buffer (20 mM Tris-HCl, PH7.5; 150 mM NaCl; 10 mM MgC12; 10 mM MnCl2; 0.4 mg/ml BSA and 2 mM DTT) containing 80 nM IDH2 (R172K, 40-end) and 40 μM NADPH was added. Then, the resulting test mixture was incubated for 120 minutes at a temperature of 23° C., and then 2.5 μl of the reaction buffer containing 4 mM α-KG was added to initiate the reaction. After incubating for 120 minutes at room temperature, 5 μl of a termination mixture (0.4 U/ml diaphorase and 40 μM resazurin) prepared with the reaction buffer was added to convert resazurin to resorufin to determine the remaining NADPH. After incubating for 10 minutes at a temperature of 23° C., a fluorescence value was determined through Flexstation 3 at Ex535/Em595.
Measurement: IC50 = 312 nM (pChEMBL 6.510000228881836)
Descriptors: MW 445.51, ALogP 6.89, HBA 3, HBD 3, PSA 53.16, QED 0.39
Compound (SMILES): CC1Cc2c(C#N)c(N3CCN(C(=O)COc4cccnc4)[C@H](C(C)C)C3)nc(C3CC3)c2CO1
InChIKey: ARPJHBMRGQBFQT-LUTIACGYSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: Inhibition Assay: Assays were conducted in a volume of 76 μl assay buffer (150 mM NaCl, 10 mM MgCl2, 20 mM Tris pH 7.5, 0.03% bovine serum albumin) as follows in a standard 384-well plate: To 25 ul of substrate mix (8 uM NADPH, 2 mM aKG), 1 μl of test compound was added in DMSO. The plate was centrifuged briefly, and then 25 μl of enzyme mix was added (0.2 μg/ml IDH1 R132H) followed by a brief centrifugation and shake at 100 RPM. The reaction was incubated for 50 minutes at room temperature, then 25 μl of detection mix (30 μM resazurin, 36 μg/ml) was added and the mixture further incubated for 5 minutes at room temperature. The conversion of resazurin to resorufin was detected by fluorescent spectroscopy at Ex544 Em590 c/o 590.
Measurement: IC50 = 5500 nM (pChEMBL 5.260000228881836)
Descriptors: MW 475.59, ALogP 3.44, HBA 7, HBD 0, PSA 91.58, QED 0.63
Compound (SMILES): C[C@H]1[C@H](O)CN1c1cc(N2C[C@@H]3[C@@H](CC(=O)O)[C@@H]3C2)cc(C(C)(F)F)n1
InChIKey: GCBUDLRCMDXYNG-DDNRWTCHSA-N
Target: Ketohexokinase (SINGLE PROTEIN), Homo sapiens
UniProt: P50053
Assay: KHK-C Assay A: A 384-well format on a Corning 3653 assay plate is used, and monitored by UV-vis spectroscopy in continuous mode at rt. Compounds were prepared in DMSO as 4 mM stocks, diluted using an 11-point half-log scheme on a Biomek FX (Beckman Coulter), and incubated at rt for 30 minutes with the reaction mixture containing 50 mM HEPES, pH 7.4, 140 mM KCl, 3.5 mM MgCl2, 0.8 mM fructose, 2 mM TCEP, 0.8 mM PEP, 0.7 mM NADH, 0.01% Triton X-100, 30 U/mL pyruvate kinase-lactate dehydrogenase, and 10 nM purified KHK-C. The compound concentration in each well ranged from 1 nM to 100 μM. The reaction was initiated with the addition of 0.2 mM ATP. The absorbance was measured for 30 minutes on a SpectraMax reader (Molecular Devices) after ATP was added. The concentrations provided are based on the final mixture volume of 40 μL (referred to as the final concentration). Controls: N8-(cyclopropylmethyl)-N4-(2-(methylthio)phenyl)-2-(piperazin-1-yl)pyrimido[5,4-d]pyrimidine-4,8-diamine at 2 μM final concentration was used as high percent effect (HPE) control, and 2.5% DMSO which was present in all reaction wells was used as zero percent effect (ZPE) control. Reaction rates were obtained for 300-1800 seconds time window in units of 1000*AU/min (absorbance unit per minute), and average values for ZPE and HPE controls from 16 wells each were calculated, AveZPE and AveHPE, respectively.
Measurement: IC50 = 331 nM (pChEMBL 6.480000019073486)
Descriptors: MW 367.4, ALogP 1.92, HBA 5, HBD 2, PSA 76.9, QED 0.83
Compound (SMILES): Nc1nc(Nc2ccc(N3CCOCC3)c(Cl)c2)nn1-c1ncnc2ccc(Cl)cc12
InChIKey: ZRNHRUUOYIDCJE-UHFFFAOYSA-N
Target: Tyrosine-protein kinase receptor UFO (SINGLE PROTEIN), Homo sapiens
UniProt: P30530
Assay: PHOSPHO-AKT IN-CELL WESTERN ASSAY: The resulting chemiluminescence was read with a Luminomitor within 10 minutes to minimize changes in signal intensity. After reading the chemiluminescence, the cells were washed 1× with wash buffer and 1× with PBS by plate washer. The plate was tapped onto paper towels to remove excess liquid from wells and air-dried at ambient temperature for 5 minutes.
Measurement: IC50 = 5500 nM (pChEMBL 5.260000228881836)
Descriptors: MW 457.32, ALogP 3.68, HBA 9, HBD 2, PSA 107.01, QED 0.48
Compound (SMILES): COc1cnc(C(=O)Nc2ccc(F)c(C3(CF)CS(=O)(=O)C(C)(C)C(N)=N3)c2)cn1
InChIKey: XGFNOMGRQYETAF-UHFFFAOYSA-N
Target: Beta-secretase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P56817
Assay: In Vivo Inhibition of Beta-Secretase: Several animal models, including mouse, rat, dog, and monkey, may be used to screen for inhibition of beta-secretase activity in vivo following administration of a test compound sample. Animals used in this invention can be wild type, transgenic, or gene knockout animals. For example, the Tg2576 mouse model, prepared and conducted as described in Hsiao et al., 1996, Science 274, 99-102, and other non-transgenic or gene knockout animals are useful to analyze in vivo inhibition of Amyloid beta peptide (Abeta) production in the presence of inhibitory test compounds. Generally, 2 to 18 month old Tg2576 mice, gene knockout mice or non-transgenic animals are administered test compounds formulated in vehicles, such as cyclodextran, phosphate buffers, hydroxypropyl methylcellulose or other suitable vehicles. One to twenty-four hours following the administration of compound, animals are sacrificed, and brains as well as cerebrospinal fluid (CSF) and plasma are removed for analysis of A-beta levels and drug or test compound concentrations (Dovey et al., 2001, Journal of Neurochemistry, 76, 173-181) Beginning at time 0, animals are administered by oral gavage, or other means of delivery such as intravenous injection, an inhibitory test compound of up to 100 mg/kg in a standard, conventional formulation, such as 2% hydroxypropyl methylcellulose, 1% Tween80. A separate group of animals receive 2% hydroxypropyl methylcellulose, 1% Tween80 alone, containing no test compound, and serve as a vehicle-control group. At the end of the test period, animals are sacrificed and brain tissues, plasma or cerebrospinal fluid are collected. Brains are either homogenized in 10 volumes (w/v) of 0.2% diethylamine (DEA) in 50 mM NaCl (Best et al., 2005, Journal of Pharmacology and Experimental Therapeutics, 313, 902-908), or in 10 volumes of 0.5% TritonX-100 in Tris-buffered saline (pH at about 7.6). Homogenates are centrifuged at 355,000 g, 4° C. for 30 minutes. CSF or brain supernatants are then analyzed for the presence of A-beta peptide by specific sandwich ELISA assays based on ECL (Electrochemiluminescence) technology.
Measurement: IC50 = 3.8 nM (pChEMBL 8.420000076293945)
Descriptors: MW 453.47, ALogP 1.61, HBA 8, HBD 2, PSA 136.63, QED 0.7
Compound (SMILES): CC(C)n1nc(-c2[nH]c3ncccc3c2Cl)c2c(N)ncnc21
InChIKey: ZAWQOJIDBCXIPU-UHFFFAOYSA-N
Target: Proto-oncogene tyrosine-protein kinase receptor Ret (SINGLE PROTEIN), Homo sapiens
UniProt: P07949
Assay: Time-Resolved Fluorescence Transfer (FRET) Assay: RET and KDR: Kinase activity was detected using CisBio HTRF kinEASE kit based on time-resolved fluorescence transfer (FRET). The assay was performed in 384-well white plates (Corning #3574) in a reaction volume of 10 μL containing 1× CisBio enzymatic buffer supplemented with a final concentration of 5 mM MgCl2, 1 mM DTT, 10 nM SEB and 0.01% Triton X100 for RET. The same buffer was used for the KDR biochemical assay with the addition of 2 mM MnCl2.Inhibitors were pre-incubated in the plate for 15 mins with 5 μL kinase and assay buffer at the following concentrations; 13 pM RET (Carna Biosciences; 08-159) and 150 pM KDR (Millipore; 14-630). The reaction was initiated by the addition of 5 μL ATP and substrate at 2× final reaction concentrations. For RET, this was 18 pM and 2 μM; for KDR, this was 16 μM and 1 μM, respectively. Reactions were performed at ATP Km for each target. The assay was allowed to proceed at room temperature for 20 mins before terminating with the addition of 10 μL HTRF detection buffer containing EDTA supplemented with TK-antibody labelled with Eu3+-Cryptate (1:100 dilution) and streptavidin-XL665 (128 nM). Following incubation at room temperature for 1 hour, FRET signal was measured using the Pherastar FS Microplate Reader.
Measurement: IC50 = 1.7 nM (pChEMBL 8.770000457763672)
Descriptors: MW 327.78, ALogP 3.19, HBA 6, HBD 2, PSA 98.3, QED 0.59
Compound (SMILES): Nc1ccc2c(n1)CC[C@H]2NC(=O)c1cn(Cc2cnc(N3CC4CC4C3)cc2C(F)(F)F)nn1
InChIKey: ARWAAFREASUOBG-PWGQDJSOSA-N
Target: Tyrosine-protein kinase BTK (SINGLE PROTEIN), Homo sapiens
UniProt: Q06187
Assay: Inhibition TR-FRET (Time Resolved FRET) Assay: This BTK competition assay measures compound potency (IC50) for the inactivated state of Bruton's Tyrosine Kinase using FRET (Förster/Flouresence Resonance Energy Transfer) technology. The BTK-Eu complex was incubated on ice one hour prior to use at a starting concentration of 50 nM BTK-Bioease: 10 nM Eu-streptavidin (Perkin-Elmer Catalog AD0062). The assay buffer consisted of 20 mM HEPES (pH 7.15), 0.1 mM DTT, 10 mM MgCl2, 0.5 mg/ml BSA with 3% Kinase Stabilizer (Fremont Biosolutions, Catalog # STB-K02). After 1 h, the reaction mixture from above was dilated 10 fold in assay buffer to make 5 nM BTK: 1 nM Eu-Streptavidin complex (donor fluorophore), 18 μl of a mixture of 0.11 nM BTK-Eu and 0.11 nM Kinase Tracer 1.78 (Invitrogen, Catalog # PV5593,) with BTK-Eu alone as no negative control, was then dispensed into 384-well flat bottom plates (Greiner, 784076). Compounds to be tested in assay were prepared as 10× concentrations and serial dilution in half-log increments was performed in DMSO so as to generate 10 point curves. To initiate the FRET reaction, compounds prepared as 10× stock in DMSO was added to the plates and the plates were incubated 18-24 h at 14° C.
Measurement: IC50 = 13 nM (pChEMBL 7.889999866485596)
Descriptors: MW 484.49, ALogP 2.59, HBA 8, HBD 2, PSA 114.85, QED 0.57
Compound (SMILES): CC(CO)(CO)NC(=O)c1ccc2c(-c3ccccc3Cl)nn(-c3ccc(F)cc3)c2c1
InChIKey: XDQCOAIQZQDMOP-UHFFFAOYSA-N
Target: Diacylglycerol O-acyltransferase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: Q96PD7
Assay: Enzymatic Activity Assay: DGAT2 activity was determined by measuring the amount of enzymatic product triolein (1,2,3-Tri(cis-9-octadecenoyl)glycerol) using the membrane prep mentioned above. The assay was carried out in deep well 384 plates in a final volume of 40 μL at room temperature. The assay mixture contained the following: assay buffer (100 mM Tris.Cl, pH 7.0, 20 mM MgCl2, 5% ethanol), 25 μM of diolein, 10 μM of oleoyl-CoA and 10 ng/μL of DGAT2 membrane.
Measurement: IC50 = 49 nM (pChEMBL 7.309999942779541)
Descriptors: MW 453.9, ALogP 3.96, HBA 5, HBD 3, PSA 87.38, QED 0.41
Compound (SMILES): Cc1nnn(Cc2cc(Cl)ccc2/C=C/C(=O)N2CCC(CCNC(=O)c3c[nH]nc3C(F)(F)F)CC2)n1
InChIKey: FBPYDVCAWFBZQW-HWKANZROSA-N
Target: Autotaxin (SINGLE PROTEIN), Homo sapiens
UniProt: Q13822
Assay: ATX Assay: Reagents LPC (oleoyl (18:1)) was purchased from Avanti Polar Lipids (Alabaster, Ala.) and solubilized in methanol to 20 mM. Amplex Red was obtained from Invitrogen Life Technologies (Paisley, UK) and dissolved in DMSO to 10 mM. Choline oxidase and horseradish peroxidase (HRP) were obtained from Sigma Aldrich (Dorset, UK) and dissolved in HBSS to 20 U/ml and 200 U/ml respectively. All reagents were stored at −20° C. in single use aliquots. All experimental measurements were performed in assay buffer made up immediately prior to use (HBSS, 0.01% BSA essentially fatty acid free).Protein Recombinant human ATX was prepared at Novartis (Basel, CH) in a human embryonic kidney (HEK) cell preparation, and stored in single use aliquots of 26 mg/ml (26 μM) stocks stored at −80° C.Method All experimental measurements were performed in black 384 well polystyrene (low volume, round bottom, Corning (3676)) plates. PerkinElmer EnVision (Fluorescence Intensity/Absorbance Monochromator) or Tecan Infinite 200 PRO series plate reader was used to detect change in fluorescent intensity.Assessing ATX inhibition ATX activity was determined by measurement of released choline in reactions containing ATX (10 nM), choline oxidase (0.1 U/ml), HRP (100 U/ml), amplex red (50 μM) and LPC 18:1 (10 μM). Compounds of the invention were prepared as 10 point serial dilutions from 1 μM in duplicate and pre-incubated with ATX at 37° C. for 20 minutes prior to the addition of remaining reagents. The liberated choline was measured from changes in fluorescence intensity (λex 530 nm, λem 590 nm) of the product resurofin at 37° C. every 2 minutes over a 40-minute period. ATX activity was measured as a slope of the linear portion of the progress curve, typically between 14 to 24 minutes.Data analysis Slope data was exported to Graphpad prism (Graphpad software, San Diego, Calif.)
Measurement: IC50 = 17 nM (pChEMBL 7.769999980926514)
Descriptors: MW 550.97, ALogP 3.5, HBA 7, HBD 2, PSA 121.69, QED 0.41
Compound (SMILES): CC(C)c1c(-c2cn(CC#N)c3ncccc23)[nH]c2ccc(C3CCC(NC4CCCOC4)CC3)nc12
InChIKey: OMLGDEZUXYLAAG-UHFFFAOYSA-N
Target: Toll-like receptor 7 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NYK1
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 = 8.5 nM (pChEMBL 8.069999694824219)
Descriptors: MW 496.66, ALogP 6.02, HBA 6, HBD 2, PSA 91.55, QED 0.34
Compound (SMILES): N#Cc1cnc2ccc(-c3c(-c4ccc(F)cc4)ncn3C3CC(F)(F)C3)nn12
InChIKey: YZXVJUAAFXYRNU-UHFFFAOYSA-N
Target: TGF-beta receptor type-1 (SINGLE PROTEIN), Homo sapiens
UniProt: P36897
Assay: Biological Assay: Assays for the compounds reported below were conducted in 1536-well plates and 2 mL reactions are prepared from addition of HIS-TGF-βR1 T204D or HIS-TGF-βR2 WT, anti-HIS detection antibody, a labeled small molecule probe (Kd=<100 nM; koff=<0.001 s−1) and test compounds in assay buffer (20 mM HEPES pH 7.4, 10 mM MgCl2, 0.015% Brij35, 4 mM DTT, and 0.05 mg/ml BSA). The reaction is incubated for 1 hour at room temperature and the HTRF signal was measured on an Envision plate reader (Ex: 340 nm; Em: 520 nm/495 nm). 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 assay are 1 nM HIS-TGF-βR1 T204D or HIS-TGF-βR2 WT, 0.2 nM anti-HIS detection antibody, labeled small molecule prode (at Kd) and 0.5% DMSO. Dose response curves were generated to determine the concentration required inhibiting 50% of kinase activity (IC50). Compounds were dissolved at 10 mM in dimethylsulfoxide (DMSO) and evaluated at eleven concentrations.
Measurement: IC50 = 14.2 nM (pChEMBL 7.849999904632568)
Descriptors: MW 394.36, ALogP 4.24, HBA 6, HBD 0, PSA 71.8, QED 0.52
Compound (SMILES): COc1cnc(C(=O)Nc2ccc(F)c([C@]3(C)CS(=O)(=O)[C@@](C)(C4CCC4)C(=N)N3)c2)cn1
InChIKey: YZOGZKNAXGTHLN-VXKWHMMOSA-N
Target: Beta-secretase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: P56817
Assay: BACE1 HTRF FRET Assay: A homogeneous time-resolved FRET assay can be used to determine IC50 values for inhibitors of the soluble human BACE1 catalytic domain. This assay monitors the increase of 620 nm fluorescence that resulted from BACE1 cleavage of an APPswedish APPswe mutant peptide FRET substrate (QSY7-EISEVNLDAEFC-Europium-amide). This substrate contains an N-terminal QSY7 moiety that serves as a quencher of the C-terminal Europium fluorophore (620 nm Em). In the absence of enzyme activity, 620 nm fluorescence is low in the assay and increased linearly over 3 hours in the presence of uninhibited BACE1 enzyme. Inhibition of BACE1 cleavage of the QSY7-APPswe-Eu substrate by inhibitors is manifested as a suppression of 620 nm fluorescence.Varying concentrations of inhibitors at 3Ã¿ the final desired concentration in a volume of 10 ul are preincubated with purified human BACE1 catalytic domain (3 nM in 10 ul) for 30 minutes at 30° C. in reaction buffer containing 20 mM Na-Acetate pH 5.0, 10% glycerol, 0.1% Brij-35 and 7.5% DSMO. Reactions are initiated by addition of 10 ul of 600 nM QSY7-APPswe-Eu substrate (200 nM final) to give a final reaction volume of 30 ul in a 384 well Nunc HTRF plate. The reactions are incubated at 30° C. for 1.5 hours. The 620 nm fluorescence is then read on a Rubystar HTRF plate reader (BMG Labtechnologies) using a 50 millisecond delay followed by a 400 millisecond acquisition time window. Inhibitor IC50 values are derived from non-linear regression analysis of concentration response curves. Ki values are then calculated from IC50 values using the Cheng-Prusoff equation using a previously determined um value of 8 uM for the QSY7-APPswe-Eu substrate at BACE1. The compounds of Examples 1, 2, and 3 were measured in this assay and each exhibited a Ki value of less than about 5 nM.
Measurement: Ki = 7.5 nM (pChEMBL 8.119999885559082)
Descriptors: MW 475.55, ALogP 2.65, HBA 7, HBD 3, PSA 134.13, QED 0.61
Compound (SMILES): O=C(Oc1cncc(C(F)(F)F)c1)N1CCC2(CC1)CN(Cc1cc(Cl)cc(Oc3nc4ccccc4s3)c1)C2
InChIKey: MHVUAAKUBXRLHC-UHFFFAOYSA-N
Target: Fatty-acid amide hydrolase 1 (SINGLE PROTEIN), Homo sapiens
UniProt: O00519
Assay: In Vitro Competitive Activity-Based Protein Assay: Proteomes (mouse brain membrane fraction or cell lysates for mouse assays; human prefrontal cortex or cell membrane fractions for human assays) (50 μL, 1.0 mg/mL total protein concentration) were preincubated with varying concentrations of inhibitors at 37° C. After 30 min, FPRh or HT-01 (1.0 μL, 50 μM in DMSO) was added and the mixture was incubated for another 30 min at 37° C. Reactions were quenched with SDS loading buffer (15 μL-4×) and run on SDS-PAGE. Following gel imaging, serine hydrolase activity was determined by measuring fluorescent intensity of gel bands corresponding to MAGL and FAAH using ImageJ 1.43u software.
Measurement: IC50 < 1000 nM (pChEMBL 6)
Descriptors: MW 589.04, ALogP 7.25, HBA 7, HBD 0, PSA 67.79, QED 0.24
Compound (SMILES): CNC(=O)N1CCN(c2nc(C3CCCCC3)c3c(c2C#N)CCOC3)C[C@H]1C
InChIKey: XCWUKJITXZMDDQ-OAHLLOKOSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: Inhibition Assay: Assays were conducted in a volume of 76 μl assay buffer (150 mM NaCl, 10 mM MgCl2, 20 mM Tris pH 7.5, 0.03% bovine serum albumin) as follows in a standard 384-well plate: To 25 ul of substrate mix (8 uM NADPH, 2 mM aKG), 1 μl of test compound was added in DMSO. The plate was centrifuged briefly, and then 25 μl of enzyme mix was added (0.2 μg/ml IDH1 R132H) followed by a brief centrifugation and shake at 100 RPM. The reaction was incubated for 50 minutes at room temperature, then 25 μl of detection mix (30 μM resazurin, 36 μg/ml) was added and the mixture further incubated for 5 minutes at room temperature. The conversion of resazurin to resorufin was detected by fluorescent spectroscopy at Ex544 Em590 c/o 590.
Measurement: IC50 = 5500 nM (pChEMBL 5.260000228881836)
Descriptors: MW 397.52, ALogP 2.92, HBA 5, HBD 1, PSA 81.49, QED 0.83
Compound (SMILES): C[C@@H]1CNc2c(sc3ccc4nc(Oc5nc(Cl)ncc5C5=CCN(C)CC5)ccc4c23)C(=O)N1
InChIKey: GGRVHLKSLQGTLJ-CYBMUJFWSA-N
Target: MAP kinase-activated protein kinase 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P49137
Assay: Mass Spectrometry Assay: Compounds I-1 through I-50 of the invention were assayed in a mass spectrometric assay to measure their ability to covalently modify MK2 protein. The procedure for this assay follows. Intact MK2 protein (Invitrogen, Cat. No. PR5320A) was incubated for 60 minutes at room temperature with a 10-fold excess of test compound to protein. Aliquots of the resulting mixture (6 μL each) were diluted with 0.2% trifluoroacetic acid (TFA, 10 μL) prior to micro C4 ZipTipping directly onto the MALDI target using sinapinic acid as the desorption matrix (10 mg/ml in 0.1% TFA:acetonitrile 50:50, v/v). The centroid mass of the target protein in the control sample was compared with the centroid mass of the target protein incubated with compound. A shift in the centroid mass of the treated protein compared to the untreated protein was divided by the molecular weight of the compound. This number corresponds to the percentage of modified protein (a measure of the proportion of total target protein covalently bound to the test compound) after one hour incubation. Results from this assay are reported in Table A under the column ¿Mass Modification¿.
Measurement: IC50 < 100 nM (pChEMBL 7)
Descriptors: MW 507.02, ALogP 4.95, HBA 8, HBD 2, PSA 92.27, QED 0.38
Compound (SMILES): COc1cc2ncc3c(c2cc1-c1cn(C)nc1C)n(-c1c(C)n[nH]c1C)c(=O)n3C
InChIKey: ZVXWBCPPNSZEPU-UHFFFAOYSA-N
Target: Serine-protein kinase ATM (SINGLE PROTEIN), Homo sapiens
UniProt: Q13315
Assay: Biochemical Kinase Assay: The IC50 value was determined with the aid of a biochemical ATM kinase assay. The assay consists of two steps: the enzymatic reaction and the detection step. Firstly, ATM (ataxia telangiectasia mutated) protein and the test substance are incubated at different concentrations with addition of substrate protein p53 and ATP. ATM mediates the phosphorylation of p53 at several positions, including at amino acid S15. The amount of phosphorylated p53 is determined with the aid of specific antibodies and the TR-FRET technique. The enzymatic ATM assay is carried out as TR-FRET (HTRF, Cisbio Bioassays) based 384-well assay. In the first step, purified human recombinant ATM (human ATM, full length, GenBank ID NM_000051, expressed in a mammal cell line) is incubated in assay buffer for 15 minutes with the ATM inhibitor in various concentrations and without test substance as negative or neutral control. The assay buffer comprises 25 mM HEPES pH 8.0, 10 mM Mg(CH3COO)2, 1 mM MnCl2, 0.1% BSA and 0.01% Brij® 35, 5 mM dithiothreitol (DTT). The test-substance solutions were dispensed into the microtitre plates using an ECHO 555 (Labcyte). In the second step, purified human recombinant cmyc-labelled p53 (human p53, full length, GenBank ID BC003596, expressed in Sf21 insect cells) and ATP are added, and the reaction mixture is incubated at 22° C. for 30-35 minutes. The pharmacologically relevant assay volume is 5 μl. The final concentrations in the assay during incubation of the reaction mixture are 0.3-0.4 nM ATM, 50-75 nM p53 and 10 μM ATP. The enzymatic reaction is stopped by addition of EDTA. The formation of phosphorylated p53 as the result of the ATM-mediated reaction in the presence of ATP is detected via specific antibodies[labelled with the fluorophorene europium (Eu) as donor and d2 as acceptor (Cisbio Bioassays)] which enable FRET. 2 μl of antibody-containing stop solution (12.5 mM HEPES pH 8.0, 125 mM EDTA, 30 mM sodium chloride, 300 mM potassium fluoride, 0.1006% Tween-20, 0.005% Brij® 35, 0.21 nM anti-phospho-p53(ser15)-Eu antibody and 15 nM anti-cmyc-d2 antibody) are added to the reaction mixture. After incubation, usually for 2 hours (between 1.5 and 15 h), for signal development, the plates are analysed in a plate reader (EnVision, PerkinElmer) using TRF mode (and with laser excitation). After excitation of the donor europium at a wavelength of 340 nm, the emitted fluorescence light both of the acceptor d2 at 665 nm and also of the donor Eu at 615 nm is measured. The amount of phosphorylated p53 is directly proportional to the quotient of the amounts of light emitted, i.e. the relative fluorescence units (RFU) at 665 nm and 615 nm.
Measurement: IC50 < 10 nM (pChEMBL 8)
Descriptors: MW 417.47, ALogP 2.93, HBA 8, HBD 1, PSA 95.55, QED 0.49
Compound (SMILES): FC(F)Oc1ccc(C2(Nc3ncc(-c4nnc(C(F)F)o4)cn3)CC2)cc1
InChIKey: UBUQJAICEFTXCL-UHFFFAOYSA-N
Target: Protein deacetylase HDAC6 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9UBN7
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 = 59 nM (pChEMBL 7.230000019073486)
Descriptors: MW 395.32, ALogP 4.17, HBA 7, HBD 1, PSA 85.96, QED 0.6
Compound (SMILES): O=C(N[C@H]1CCCC[C@@H]1O)C1=CN(Cc2ccccc2)c2ccccc2[S+]1[O-]
InChIKey: OMPWTULZRVBNFN-AEVWWTOBSA-N
Target: Muscarinic acetylcholine receptor M1 (SINGLE PROTEIN), Homo sapiens
UniProt: P11229
Assay: Determination of Allosteric Potency EC50 Values for Muscarinic M1 Receptor: A stable CHO cell line expressing recombinant human Muscarinic M1 receptor and pCRE-Luc reporter system was used for cell-based assay. The assay offers a non-radioactive based approach to determine binding of a compound to GPCRs. In this specific assay, the level of intracellular cyclic AMP which is modulated by activation or inhibition of the receptor is measured. The recombinant cells harbor luciferase reporter gene under the control of cAMP response element.The above cells were grown in 96 well clear bottom white plates in Hams F12 medium containing 10% fetal bovine serum (FBS). Prior to the addition of compounds or standard agonist, cells were serum starved overnight. Increasing concentrations of test compounds were added along with EC20 of acetylcholine in OptiMEM medium to the cells. The incubation was continued at 37° C. in CO2 incubator for 4 hours. Medium was removed and cells were washed with phosphate buffered saline. The cells were lysed and luciferase activity was measured in a Luminometer. Luminescence units were plotted against the compound concentrations using Graphpad software. EC50 values of the compounds were defined as the concentration required in stimulating the luciferase activity by 50% in presence of EC20 of acetylcholine.
Measurement: EC50 = 1395 nM (pChEMBL 5.860000133514404)
Descriptors: MW 396.51, ALogP 3.08, HBA 4, HBD 2, PSA 75.63, QED 0.78
Compound (SMILES): CC(C)(O)[C@]1(C)Cc2cc(NC(=O)c3cnn4cccnc34)c(N3CCN(Cc4c[nH]cn4)CC3)cc2O1
InChIKey: CPWWILVJBQCOTH-MHZLTWQESA-N
Target: Interleukin-1 receptor-associated kinase 4 (SINGLE PROTEIN), Homo sapiens
UniProt: Q9NWZ3
Assay: Biological Assay: Kinase activities were assayed using the Transcreener-Fluorecescence polarization platform (BelBrook Labs, Madison, Wis., USA) that measures amounts of the reaction product, ADP. The IRAK4 reaction conditions were optimized using an IRAK1-derived peptide (sequence H-KKARFSRFAGSSPSQSSMVAR) to provide a linear reaction rate over the course of a 90 min incubation, which resulted in 10-12% conversion of the starting ATP to ADP. Final IRAK4 assay conditions were 1.25 nM IRAK4; 125 uM ATP; 10 uM MgCl2; 125 uM peptide in reaction buffer (25 mM HEPES (pH7.4); 2 mM Dithiothreitol; 0.015% Brij-35; and 0.5% dimethyl sulfoxide. The IRAK1 activity was optimized similarly, yielding final assay conditions of 3 mM IRAK1; 62.5 uM ATP; 5 uM MgCl2, and 62.5 uM IRAK1 peptide in reaction buffer for 60 min.Assays of compounds for kinase inhibition were performed using inhibitors serially-diluted in dimethyl sulfoxide, which was accomplished with a LabCyte Echo 555 liquid dispenser. 384 well assay plates spotted with compound received 4 ul of a 2× substrate (ATP+peptide) mix in reaction buffer, followed by 4 ul of 2× enzyme diluted in reaction buffer. Reactions were halted at 60 (IRAK1) or 90 (IRAK4) min by addition of 6 ul of detection buffer, containing EDTA (40 nM final concentration), 0.95 ug of the ADP-binding antibody ADP2, ADP tracer (3 nM final concentration), and 25 uM HEPES. Following a 1 hr incubation, fluorescence polarization of the ADP2-antibody TRACER complex was read on a Tecan M1000 plate reader using a 635/20 excitation filter in combination with a 670/20 emission filter.
Measurement: Ki = 4.4 nM (pChEMBL 8.359999656677246)
Descriptors: MW 516.61, ALogP 2.49, HBA 9, HBD 3, PSA 123.91, QED 0.36
Compound (SMILES): Cc1cc(Oc2ccc(/N=c3\[nH]c(=O)[nH]c(=O)n3Cc3ccc(Cl)cc3)cc2)ccn1
InChIKey: QXWLSMZJNDINLZ-UHFFFAOYSA-N
Target: P2X purinoceptor 3 (SINGLE PROTEIN), Homo sapiens
UniProt: P56373
Assay: Human P2X3 Receptor Inhibition Assay: Stably expressing cell line (C6BU-1 transfected with human P2X3 receptor gene (GenBank accession number Y07683) was used. The cells were seeded in a 96-well microtiter plate at a concentration of 8000 cells/well and cultured in the medium (8.3% fetal bovine serum, 8.3% horse serum, 1% antibiotic and antifungal in DMEM) for one day at 37° C. under 5% carbon dioxide atmosphere. The medium was replaced with 4 μM Fluo-3-AM solution (20 mM HEPES, 137 mM NaCl, 2.7 mM KCl, 0.9 mM MgCl2, 5.0 mM CaCl2, 5.6 mM D-glucose, 2.5 mM probenecid, 10% BSA, and 0.08% Pluronic F-127, pH 7.5) and incubated at 37° C. under 5% dioxide carbon atmosphere for one hour. The plate was washed with washing buffer (20 mM HEPES, 137 mM NaCl, 2.7 KCl, 0.9 mM MgCl2, 5.0 mM CaCl2, 5.6 mM D-glucose, 2.5 mM probenecid, pH 7.5), each well was added with 40 μL of this buffer. The plate was placed in High-Throughput Screening System FDSS 3000 (Hamamatsu Photonics K.K.). Measurement of fluorescence intensity by FDSS 3000 was started, and 40 μl, of DMSO solutions containing different concentrations of the test, compound as prepared by dilution with dilution buffer (20 mM HEPES, 137 mM NaCl, 2.7 mM KCl, 0.9 mM MgCl2, 5.0 mM CaCl2, 5.6 mM D-glucose, 2.5 mM probenecid, 0.1.% Pluronic F-127, pH 7.5) were dispensed to each well through the built-in automatic dispenser. Five minutes after, 50 nM ATP solution (50 μL) prepared by dilution with the dilution buffer was dispensed through the built-in automatic dispenser, and the measurement of fluorescence intensity was continued for 3 min. For each well, the specific maximum fluorescence intensity was calculated as the ratio of the maximum fluorescence intensity after addition of the ATP solution to the fluorescence intensity at the starting of the measurement. The 50% inhibitory concentration (IC50) was calculated under the assumption that the specific maximum fluorescence intensity without test compound is 0% inhibition and that the specific maximum fluorescence intensity when the dilution buffer was added in place of ATP solution is 100% inhibition, to evaluate the inhibitory activity of the test compound. FDSS software (Hamamatsu Photonics K.K.) was used for calculation of the specific maximum fluorescence intensity. IC50 was calculated using Microsoft Excel (Microsoft Corporation) and Ltd.).
Measurement: IC50 = 97 nM (pChEMBL 7.010000228881836)
Descriptors: MW 435.87, ALogP 3.29, HBA 6, HBD 2, PSA 105.13, QED 0.5
Compound (SMILES): NS(=O)(=O)c1c(C(F)(F)F)ccc(N2CCC(N3CCNCC3)CC2)c1-c1nnn[nH]1
InChIKey: LRSRXELMKIEFQL-UHFFFAOYSA-N
Target: Metallo-beta-lactamase type 2 (SINGLE PROTEIN), Bacteria
UniProt: C7C422
Assay: Class B Enzyme Assay: The Class B enzyme activities were measured in the presence of the test inhibitor in a fluorescence assay against a commercially available substrate consisting of a cephalosporin core linking 7-hydroxycoumarin to fluorescein (CCF2-FA). The enzyme (NDM-1, IMP-1 or VIM-1) and the substrate were diluted in 100 mM KH2PO4 buffer (pH 7) containing 0.005% Tween-20 and 10 μM ZnSO4. In the assay, the final concentration of enzyme was 1 pM, 2 pM and 30 pM for NDM-1, IMP-1 and VIM-1, respectively, and the final concentration of CCF2-FA was 1.25 μM. The test inhibitor was dissolved in dimethylsulfoxide and diluted 1:50 in the assay, resulting in a final concentration range of 20 uM to 0.00063 uM. In a 384-well microplate, the test inhibitor was incubated with the metallo-β-lactamase enzyme and the substrate for 2 hours at 25° C. Fluorescence at 460 nm following excitation at 405 nm was measured. The IC50 value was determined from semi-logarithmic plots of enzyme inhibition versus inhibitor concentration, with a curve generated using a 4-parameter fit.
Measurement: IC50 = 17.7 nM (pChEMBL 7.75)
Descriptors: MW 460.49, ALogP 0.41, HBA 8, HBD 3, PSA 133.13, QED 0.6
Compound (SMILES): Cc1cc(-c2ccc3c(c2)nc(Nc2ccc(OC(F)(F)F)cc2)n3[C@@H]2C[C@H](C)CC(C)(C)C2)n(C)n1
InChIKey: JDEHFVUWCKSVCS-LAUBAEHRSA-N
Target: Isocitrate dehydrogenase [NADP] cytoplasmic (SINGLE PROTEIN), Homo sapiens
UniProt: O75874
Assay: Mutant IDH1 R132H Biochemical Assay: mIDH1 catalyzes the NADPH-dependent reduction of alpha-ketoglutarate (α-KG) to (2R)-2-hydroxyglutarate (2-HG). NADPH consumption was measured by luminescent readout.The biochemical reactions were performed at 32° C. in 384-well plates using a reaction volume of 41 μl and the following assay buffer conditions: 50 mM Tris pH 7.5, 100 mM NaCl, 20 mM MgCl2, 0.05% BSA, 0.01% Brij, 1 μM NADPH, and 250 μM α-KG. The IDH1 R132H enzyme was used in a final concentration of 1.5 nM. Test compounds were used in a concentration range between 0.002 and 10 μM. The final DMSO concentration was 2.4%.The reaction was incubated for 30 minutes, then 40 μl of detection mix (0.75 μg/ml Luciferase, 0.02 U/ml Oxidoreductase, 4 μg/ml FMN, 2 μl/ml Decanal/Ethanol, 50 mM Tris pH 7.5, 0.5% Glycerin, 0.01% Tween-20, 0.05% BSA) was added. Luminescence was measured on a luminescent reader (10 seconds measuring time, 1 second integration period, 30% sensitivity). The decrease in luminescence is proportional to mIDH1 activity. IC50 values are determined by interpolation from plots of relative luminescence versus inhibitor concentration.
Measurement: IC50 = 100 nM (pChEMBL 7)
Descriptors: MW 511.59, ALogP 7.77, HBA 6, HBD 1, PSA 56.9, QED 0.3
Compound (SMILES): CC(C)(C)c1nc(N2CC[C@H](O)C2)c2cnn(Cc3nnnn3C3CC3)c2n1
InChIKey: WFLDLGAWXZERNV-LBPRGKRZSA-N
Target: Cannabinoid receptor 2 (SINGLE PROTEIN), Homo sapiens
UniProt: P34972
Assay: cAMP Assay: CHO cells expressing human CB1 or CB2 receptors are seeded 17-24 hours prior to the experiment 50.000 cells per well in a black 96 well plate with flat clear bottom (Corning Costar #3904) in DMEM (Invitrogen No. 31331), lx HT supplement, with 10% fetal calf serum and incubated at 5% CO2 and 37° C. in a humidified incubator. The growth medium was exchanged with Krebs Ringer Bicarbonate buffer with 1 mM IBMX and incubated at 30° C. for 30 min. Compounds were added to a final assay volume of 100 ul and incubated for 30 min at 30° C. Using the cAMP-Nano-TRF detection kit the assay (Roche Diagnostics) was stopped by the addition of 50 ul lysis reagent (Tris, NaCl, 1.5% Triton X100, 2.5% NP40, 10% NaN3) and 50 ul detection solutions (20 uM mAb Alexa700-cAMP 1:1, and 48 uM Ruthenium-2-AHA-cAMP) and shaken for 2 h at room temperature. The time-resolved energy transfer is measured by a TRF reader (Evotec Technologies GmbH), equipped with a ND:YAG laser as excitation source. The plate is measured twice with the excitation at 355 nm and at the emission with a delay of 100 ns and a gate of 100 ns, total exposure time 10 s at 730 (bandwidth 30 nm) or 645 nm (bandwidth 75 nm), respectively. The FRET signal is calculated as follows: FRET=T730-Alexa730-P(T645-B645) with P=Ru730-B730/Ru645-B645, where T730 is the test well measured at 730 nM, T645 is the test well measured at 645 nm, B730 and B645 are the buffer controls at 730 nm and 645 nm, respectively. cAMP content is determined from the function of a standard curve spanning from 10 uM to 0.13 nM cAMP. EC50 values were determined using Activity Base analysis (ID Business Solution, Limited). The EC50 values for a wide range of cannabinoid agonists generated from this assay were in agreement with the values published in the scientific literature.
Measurement: EC50 = 8.8 nM (pChEMBL 8.0600004196167)
Descriptors: MW 383.46, ALogP 1.06, HBA 10, HBD 1, PSA 110.67, QED 0.71
Compound (SMILES): CCOc1cc(-c2ccc(N3CCC(CN4CCN(C)[C@@H](C)C4)(NC(=O)OC(C)C)CC3)nc2)c2c(C#N)cnn2c1
InChIKey: XNHCCOFIIDUQFV-QHCPKHFHSA-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 = 21.1 nM (pChEMBL 7.679999828338623)
Descriptors: MW 574.73, ALogP 3.78, HBA 10, HBD 1, PSA 111.26, QED 0.43