KPR-5714 (KPR5714) is a novel potent, selective TRPM8 antagonist with IC50 of 25.3 and 22.4 nM against hTRPM8 and rTRPM8, respectively.KPR-5714 dispalys 400-fold against human TRPA1, TRPV1, and TRPV4, and does not show inhibitory effects for ASIC1a, ASIC3, Nav1.3, Nav1.5, Nav1.6, Nav1.7, and Nav1.8 (IC50 values >10 uM).KPR-5714 (i.p.) inhibited the hyperactivity of mechanosensitive C-fibers of bladder afferents and dose-dependently increased the intercontraction interval shortened by intravesical instillation of acetic acid in anesthetized rats.KPR-5714 (orally administered) dose-dependently increased the mean voided volume and decreased voiding frequency without affecting total voided volume in vivo.

KNI-1657 (KNI1657) is a highly potent HIV-1 protease inhibitor (97% inhibition at 1 nM) with high sensitivity against lopinavir/ritonavir- or darunavir-resistant strains; inhibits wild-type HIV-1 (pNL4-3) and LPV-resistant strain A17 with IC50 of <3 and 25 nM, respectively.

KNa1.1 inhibitor 31 is a potent, selective, orally available inhibitor of sodium-activated potassium channel KNa1.1 (Slack, Slo2.2) with IC50 of 40 nM (hKNa1.1 WT).KNa1.1 inhibitor 31 reduced seizures and interictal spikes in a mouse model of KCNT1 GoF.

KIN-8194 (KIN8194) is a highly potent dual HCK and BTK inhibitor with IC50 of <0.495 and 0.915 nM, respectively.KIN-8194 demonstrated greater selectivity compared with A419259 with no KIT, RET, PDGFRA, EPHB6, or CDPK1 inhibition.KIN-8194 binds to gatekeeper residue Thr333 of HCK, but not to Cys481 of BTK.KIN-8194 shows robust inhibition of both HCK and BTK activity in MYD88-mutated cells, showed robust inhibition of HCK Tyr410 phosphorylation; inhibits the growth and survival of MYD88-mutated WM and ABC DLBCL cells.KIN-8194 overcomes ibrutinib resistance relatedto BTK Cys481Ser-expressing MYD88-mutated B-cell lymphoma cells, synergizes with the BCL-2 inhibitor venetoclax.KIN-8194 shows superior activity over ibrutinib in MYD88-mutated TMD-8 ABC DLBCL xenograft mouse model.KIN-8194 is active against ibrutinib resistance in BTK Cys481Ser -expressing ABC DLBCL xenograft mouse model.

KIF18A inhibitor 24 is a highly potent, in vivo active inhibitor of mitotic kinesin KIF18A with IC50 of 61 nM.KIF18A inhibitor 24 binds at the interface of KIF18A and tubulin.KIF18A inhibitor 24 exhibits significant mitotic arrest in MDA-MB-157 mitotic cells with EC50 of 11 nM, followed by cell death either in mitosis or in the subsequent interphase, which is sustained for 24 h.

KI-696 (KI696) is a highly potent, selective inhibitor of KEAP1-NRF2 interaction, exhibits very high affinity for the KEAP1 Kelch domain with ITC Kd of 1.3 nM.KI-696 displays high selectivity against a panel of 49 in vitro functional assays for targets, with the exception of the OATP1B1 (IC50=2.5 µM), the bile salt export pump BSEP (IC50=4.0 µM), and PDE3A (IC50=10 uM).KI-696 increases NRF2 nuclear translocation in normal human bronchial epithelial cells, up-regulates NRF2-dependent gene expression NQO1 and GCLM, and increases NQO1 activity in an NRF2-dependent manner.KI-696 significantly reduces ozone-induced pulmonary inflammation, restores ozone-induced depletion of lung GSH levels in vivo.

KH-4-43 is a small moelcule E3 CRL4 inhibitor and exhibits antitumor potential, directly and selectively binds to the purified E3 ROC1-CUL4A CTD complex with Kd of 83 nM.KH-4-43 weakly binds to the purified, highly related E3 ROC1-CUL1 CTD complex with Kd of 9.4 uM, >100-fold less potent than ROC1-CUL4A CTD, showed little effect on Ub thiol ester formation with E1/E2 Cdc34.KH-4-43 inhibited the ubiquitination of CK1α by CRL4CRBN in vitro. Treatment of cells with KH-4-43 caused accumulation of the E3 CRL4 substrate CDT1.KH-4-43 inhibited cell viability against a panel of tumor lines, NB-4, MV4-11, OVCAR-3, and CAPAN-2 cell with IC50 of 1.8, 3.0, 3.9, and 4.8 uM, respectively.KH-4-43 suppress the growth of human tumor xenografts in mice.

KDOBA67 is a novel cell-permeable inhibitor of H3K27 lysine demethylase KDM6A/B, inhibits TBXT expression chordoma cell lines.KDOBA67 displayed in vitro inhibitory activity in the low micromolar range with IC50 values of 2 to 5 uM in various chordoma cell lines, leading to induction of apoptosis.H3K27 demethylase inhibition via KDOBA67 alters chromatin state at TBXT and inhibits its expression.TBXT was a KDM6A/B target gene, and chromatin changes at TBXT following KDOBA67 treatment were associated with a reduction in TBXT protein levels.KDOBA67 treatment downregulated expression of a network of transcription factors critical for chordoma survival and upregulated pathways dominated by ATF4-driven stress and proapoptotic responses.

K-312 is a novel cholesteryl ester transfer protein (CETP) inhibitor with IC50 of 60 nM, also suppresses hepatocyte expression of PCSK9, raises HDL and lowers LDL cholesterol levels in vivo; raises HDL cholesterol, decreases LDL cholesterol, and attenuates aortic atherosclerosis in cholesterol-fed rabbits; decreases PCSK9 expression in human primary hepatocytes and in the human hepatoma cell line HepG2, decreases the occupancy of SREBP-1 and SREBP-2 on the sterol regulatory element of the PCSK9 promoter.

JWD-065 is a potent small molecule HIPK2 kinase inhibitor, blocks HIPK2 phosphorylation on S359/T360 and JNK activation in HEK293 cells and attenuates ER stress-induced cell death with EC50 of 641 nM.

JW-65 (JW65) is a selective, potent,CNS-permeable TRPC3 inhibitor improved stability compared to Pyr3.JW-65 shows similar potency and selectivity on TRPC3 channels, but is metabolically much more stable than its precursor, demonstrated by its much longer half-life (>4 h) in mouse, rat, and human liver microsomes when compared to Pyr3.JW-65-treated mice showed substantially decreased susceptibility to PTZ-induced seizures in a dose-dependent manner.

JTP-0157602 (JTP0157602) is a novel non-catalytic site integrase inhibitor of HIV-1 integrase (IN), inhibits the interaction between LEDGF IBD and IN with IC50 of 4.2 nM.JTP-0157602 exhibits potent antiviral activity against HIV-1 with EC90 of 138 nM.JTP-0157602 retained potent antiviral activity (EC50=1-6 nM) against a broad panel of recombinant viruses with INSTI-related resistant mutations, including multiple substitutions that emerged in clinical studies of INSTIs (IN strand transfer inhibitors (INSTIs).JTP-0157602 inhibited HIV-1 replication mainly during the late-phase of the replication cycle.JTP-0157602 binds to the LEDGF/p75 binding pocket of HIV-1 integrase (IN).

JS25 is a potent, selective, covalent TEC family of non-receptor tyrosine kinases (BTK, ITK, TXK and BMX) inhibitor with IC50 of 3.5 and 5.8 nM for BMX and BTK, respectively.JS25 displays a strong binding affinity against all the members of TEC family, covalently inhibits BMX at Cys496. JS25 demonstrates intracellular target engagement in HEK293 cells (IC50=44.8 nM), 10 times greater than BMX-IN-1.JS25 inhibits androgen-receptor positive prostate-cancer cells with GI50 of 6.6 uM.JS25 shows synergistic anti-proliferative activity in LNCaP cells in combination with AKT1/2 (AKT inhibitor), Flutamide (androgen receptor antagonist) and LY293002 (PI3K inhibitor).

JS24 is a potent, selective, covalent TEC family of non-receptor tyrosine kinases (BTK, ITK, TXK and BMX) inhibitor with IC50 of 7.5 and 11.1 nM for BMX and BTK, respectively.JS24 displays a strong binding affinity against all the members of TEC family, covalently inhibits BMX at Cys496.JS24 inhibits androgen-receptor positive prostate-cancer cells with GI50 of 1.5 uM.JS24 shows synergistic anti-proliferative activity in LNCaP cells in combination with AKT1/2 (AKT inhibitor), Flutamide (androgen receptor antagonist) and LY293002 (PI3K inhibitor).

JPE1375 is a potent, peptidomimetic C5a receptor antagonist with IC50 of 39 nM.JPE1375 inhibits neutrophil influx in the RPAR in mice.

JNJ-pan-AR is a highly potent, selective antagonist of androgen receptor (AR) wild-type and F877L mutant for the treatment of the F877L mutant and wild-type CRPC.

JNJ-39641160 (JNJ39641160) is a peripherally restricted, non-covalent, potent, selective, orally-available Cathepsin S (CatS) inhibitor with Ki of 38 nM (hCatS).JNJ-39641160 maintains a high selectivity against other closely related cysteine proteases including cathepsins B, C, F, V (L2), K, Z, C, or legumain and the aspartic proteases such as cathepsins E or D.JNJ-39641160 showed similar potency against human and monkey CatS enzymes, and it exhibited less, albeit significant, activity against mouse and dog CatS enzymes (Ki=160-207 nM).JNJ-39641160 is only weakly active against rat cathepsin S (Ki=9.6 uM). JNJ-39641160 induced accumulation of the p10Ii with an average IC50 of 294 ± 28 nM, showed similar potency in purified human PBMC with IC50 of 327 nM.JNJ-39641160 dose-dependently blocked the proteolysis of the invariant chain, and inhibited both T-cell activation and antibody production to a vaccine antigen in C57BL/6 mice.JNJ-39641160 fully reversed tactile allodynia in wild-type mice but was completely ineffective in the same model in CatS knockout mice.

JMN3-003 is a host-directed inhibitor with potent antiviral activity against a panel of myxovirus family members with EC50 of 10-70 nM.JMN3-003 shows activity against MeV at 170 (viral CPE-reduction assay) and 30 nM (virus yield reduction assay) and does not display any detectable acute cytotoxicity.JMN3-003 also shows superb antiviral activity against a selection of clinical-relevant paramyxovirus (RSV, MuV, and HPIV3) and orthomyxovirus (influenza) family members.

JCP276 is a novel antibiotic and covalent inhibitor that disrupt M. tuberculosis growth by targeting multiple serine hydrolases.JCP276 is a narrow-spectrum inhibitor of Mycobacterium tuberculosis growth.JCP276 inhibits multiple nonessential serine hydrolases.JCP276 treatment caused accumulation of free lipids and a substantial decrease in lipooligosaccharides, linking SH inhibition to defects in cell envelope biogenesis.

JBJ-08-178-01 is a potent, selective and covalent HER2 inhibitor with IC50 of 2.21 nM and 7.04 nM for HER2 WT and EGFR WT, targets multiple HER2 activating mutations, including exon 20 insertions as well as amplification (IC50 values<50 nM).JBJ-08-178-01 maintained potency against non-insertion mutations, including S310F, L755S, V777L, V842I, and exon 19 indel (755_757LREdelinsRP) of HER2.JBJ-08-178-01 exhibited a much greater degree of HER2-selectivity in Ba/F3 cell lines than in biochemical assays, owing to weak growth inhibition against Ba/F3 cells with WT EGFR (IC50=368 nM).JBJ-08-178-01 showed strong antitumoral activity in HER2- mutant or amplified cancers in vitro and in vivo.Treatment with JBJ-08-178-01 also led to a reduction in total HER2 by promoting proteasomal degradation of the receptor.JBJ-08-178-01 is a selective, dual-action inhibitor and destabilizer of HER2 with potential efficacy and tolerance against NSCLC harboring HER2 genetic alterations or amplification.

IY7640 (IY-7640) is a small molecule targeting the stalk region of the influenza HA protein, blocks HA-mediated membrane fusion of H1N1, H3N2, and influenza B viruses in cells.IY7640 demonstrated potency against H1N1, H3N2, H5N1, H7N9, and H9N2 subtypes of IAV, including the 2009 pandemic H1N1 (pH1N1) virus (A/Korea/01/2009, rK09), with EC50 of 0.62-220 uM in plaque reduction assay in MDCK cells.IY7640 successfully inhibited rK09 replication in cells at a level comparable to that of oseltamivir, K09 HA fusion was inhibited only by 1 uM IY7640.The stalk region of the influenza HA protein is highly conserved across different (sub)types of influenza viruses.

IS811 is a potent, selective CCR3 antagonist with IC50 of 2.0 nM, potently inhibits chemotaxis with EC50 of 19 nM.IS811 displays >100-fold selectivity over 5-HT2a, DAT and NET.IS811 (0-20 mg/kg) dose-dependently inhibited eotaxin-induced eosinophil influx to the lung in vivo.

IRBM6 (Class I HDAC-IN-6) is a potent, class I selective HDAC inhibitor with EC50 of 50 nM (HeLa cellular), HDAC1/2/3 IC50 of 1.7/2.8/1.1 nM.IRBM6 weakly inhibits HDAC6 (IC50=177 nM) and is inactive at 5 uM against HDACs 4-7.IRBM6 showed a potent inhibitory effect on the growth TC-797s and two additional NUT carcinoma (NC) cell lines, PER-403, and 10-15.IRBM6 induces a transcriptional program of differentiation in NC cells, demonstrated large-scale changes in gene expression that were significantly enriched with differentiation gene sets and depleted of pro-growth gene sets, including those of MYC and E2F targets.IRBM6 repressed growth and induced differentiation of NUT carcinoma (NC) cells in proportion to inhibition of NUT transcriptional activity.

IRAP-IN-1 is a selective insulin-regulated aminopeptidase (IRAP) inhibitor with IC50 of 32 nM, >25-fold selectivity over ERAP1 and ERAP2.IRAP-IN-1 reduces IRAP-dependent but not ERAP1-dependent cross-presentation by dendritic cells with nanomolar efficacy.

IPP-14 is a novel PAK1 inhibitor that selectively blocks the PAK1-PUMA binding and suppresses cell proliferation via PUMA-dependent manner; suppresses cancer cell viability and migration, induces p21 expression and induces M-phase arrest by inhibition of PAK1; also induces p21/WAF1/CIP1 (Cyclin-dependent kinase inhibitor 1A) expression by releasing from Bcl-2 and by inhibition of AKT-mediated p21 suppression.

iP300w is a potent p300/CBP inhibitor, inhibits p300-mediated H3K9 acetylation with IC50 of 33 nM in HTRF assay.iP300w diminishes DUX4-induced toxicity and inhibits DUX4-mediated transcription.iP300w blocks DUX4-induced H3 acetylation and prevents the increase in expression of DUX4 target genes, erases the DUX4-mediated transcriptional fingerprint in FSHD myoblasts.iP300w impairs DUX4-mediated transcription in vivo in the iDUX4pA FSHD mouse model.

Inupadenant (EOS-850, EOS100850) is a non brain-penetrant, potent and highly selective small molecule antagonist of adenosine A2a receptor (A2AR), shows activity at the high adenosine concentrations found in tumors.

IMP-1575 (IMP1575) is a potent, selective Hedgehog acyltransferase (HHAT) inhibitor with Ki/IC50 of 38 nM/0.75 uM (Acyl-cLIP assay).IMP-1575 is the first sub-micromolar small-molecule HHAT inhibitor reported to-date.IMP‐1575 (50-0.023 μM) was therefore analyzed for effects on HHAT kinetics at varying Pal‐CoA concentrations (50–0.19 μM).IMP-1575 is a chemical tool and methodology to provide insight into HHAT which may expedite future studies and drug discovery efforts against this important target class.

IMB5476 (IMB 5476) is a nitrobenzoate microtubule inhibitor, exerts broad-spectrum cytotoxicity against various human tumor cell lines (NCI-H460, IC50=144 nM).IMB5476 inhibits purified tubulin polymerization in vitro, binds to tubulin at the colchicine pocket.IMB5476 induced cell death by mitotic catastrophe and apoptosis, disrupted microtubule networks in cells and arrested cell cycle at G2/M phase.IMB5476 is a poor substrate of P-glycoprotein and exhibited potent cytotoxicity against drug-resistant tumor cells.IMB5476 inhibited angiogenesis in vitro, also inhibited the growth of drug-resistant KBV200 xenografts in mice.

IMA-1 is a small molecule that interrupt the arachidonate 12-lipoxygenase (ALOX12)-acetyl-CoA carboxylase 1 (ACC1) interaction.IMA-1 markedly blocked diet-induced NASH progression in both male mice and Cynomolgus macaque therapeutic models.The anti-NASH efficacy of IMA-1 was comparable to ACC inhibitor in both species.IMA-1 directly binds to a pocket in ALOX12 proximal to its ACC1-interacting surface instead of inhibiting ALOX12 lipoxygenase activity.IMA-1 treatment did not elicit hyperlipidemia, a known side effect of direct inhibition of ACC enzymatic activity, in both mice and macaques.