JAK3/BTK-IN-4 is a potent inhibitor of JAK3/BTK. BTK and JAK3 are two important targets for autoimmune diseases. Simultaneous inhibition of the BTK/JAK3 signalling pathway exhibits synergistic effects. JAK3/BTK-IN-4 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147953A1, compound 003)[1]
TAK-020 is a covalent Btk inhibitor, which becomes the clinical candidate.
Orelabrutinib (ICP-022) is a potent, orally active, and irreversible Bruton's tyrosine kinase (BTK) inhibitor. Orelabrutinib has the potential for B-cell malignancies treatment[1].
LFM-A13 is a potent BTK, JAK2, PLK inhibitor, inhibits recombinant BTK, Plx1 and PLK3 with IC50s of 2.5 μM, 10 μM and 61 μM. LFM-A13 has antiproliferative activity and anticancer activity. LFM-A13 can be used in cancer-related research[1][3][4]
BTK-IN-5 is a covalent BTK inhibitor for treating medical conditions such as cardiovascular diseases, respiratory diseases, inflammation, and diabetes.
BTK-IN-27 (example 8) is a BTK inhibitor (IC50: 0.2 nM). BTK-IN-27 shows anti-proliferative activity in TMD8 cells (IC50: < 5 nM). BTK-IN-27 can be used for research of cancer, lymphoma, leukemia and immunological diseases[1].
JAK3/BTK-IN-5 is a potent inhibitor of JAK3/BTK. BTK and JAK3 are two important targets for autoimmune diseases. Simultaneous inhibition of the BTK/JAK3 signalling pathway exhibits synergistic effects. JAK3/BTK-IN-5 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147953A1, compound 35)[1]
Spebrutinib besylate (AVL-292 benzenesulfonate; CC-292 besylate) is a potent inhibitor of Btk kinase activity (IC50<0.5 nM, Kinact/Ki=7.69×104 M-1s-1s) in biochemical assays.
BTK IN-1 is a potent BTK inhibitor, with an IC50 of <100 nM.
BTK inhibitor 4b is a potent, highly selective inhibitors of BTK with IC50 of 4.2 and 0.9 nM against activated and unactivated BTK, respectively; demonstrates significant efficacy in models in vivo and good ADME and safety profiles.
ACP-5862 is a major active, circulating, pyrrolidine ring-opened metabolite of Acalabrutinib with an IC50 of 5.0 nM for Bruton tyrosine kinase (BTK)[1]. Acalabrutinib is an orally active, irreversible, and highly selective BTK inhibitor, with an IC50 of 3 nM and EC50 of 8 nM[2].
XMU-MP-3 is a potent non-covalent BTK inhibitor with IC50s of 10.7 nM and 17.0 nM for BTK WT and BTK C481S mutation in the presence of 10 μM ATP, respectively. XMU-MP-3 also induces apoptosis[1].
RN486 is a selective Btk inhibitor with an IC50 Value of 4.0 nM.IC50 Value: 4.0 nM [1]Target: Btk Kinasein vitro: In the enzymatic assay, the compound potently inhibited Btk kinase activity with an IC50 of 4.0 nM. RN486 not only potently and selectively inhibited the Btk enzyme, but also displayed functional activities in human cell-based assays in multiple cell types, blocking Fcε receptor cross-linking-induced degranulation in mast cells (IC(50) = 2.9 nM), Fcγ receptor engagement-mediated tumor necrosis factor α production in monocytes (IC(50) = 7.0 nM), and B cell antigen receptor-induced expression of an activation marker, CD69, in B cells in whole blood (IC(50) = 21.0 nM) [1]. In a co-culture system consisting of human primary synovial FLS and activated human platelets, convulxin stimulation resulted in elevated production of pro-inflammatory cytokines, IL-6 and IL-8, an effect which was dose-dependently blocked by RN486 [2].in vivo: RN486 displayed similar functional activities in rodent models, effectively preventing type I and type III hypersensitivity responses. More importantly, RN486 produced robust anti-inflammatory and bone-protective effects in mouse CIA and rat adjuvant-induced arthritis (AIA) models. In the AIA model, RN486 inhibited both joint and systemic inflammation either alone or in combination with methotrexate, reducing both paw swelling and inflammatory markers in the blood [1]. The administration of RN486 completely stopped disease progression, as determined by histologic and functional analyses of glomerular nephritis. The efficacy was associated with striking inhibition of B cell activation, as demonstrated by a significant reduction in CD69 expression in response to BCR crosslinking. RN486 markedly reduced the secretion of IgG anti-double-stranded DNA (anti-dsDNA) secretion, as determined by enzyme-linked immunosorbent and enzyme-linked immunospot assays [3].
BMS-986143 is an orally active, reversible BTK inhibitor with an IC50 of 0.26 nM. BMS-986143 also inhibits TEC, BLK, BMX, TXK FGR, YES1, ITK with IC50s of 3 nM, 5 nM, 7 nM, 10 nM, 15 nM,19 nM, 21 nM, respectively. BMS-986143 can be used for the research of autoimmune diseases[1].
NRX-0492 is an orally active and potent degrader of BTK. NRX-0492 catalyzes ubiquitylation and proteasomal degradation of BTK with DC50≤0.2 nM and DC90≤0.5 nM, respectively. NRX-0492 inhibits B-cell receptor (BCR)-mediated signaling, transcriptional programs, and chemokine secretion. Moreover, NRX-0492 also links a noncovalent BTK-binding domain to Cereblon. Cereblon is an adaptor protein of the E3 ubiquitin ligase complex[1].
BTK-IN-23 is a BTK inhibitor (IC50: 12.8 nM). BTK-IN-23 also inhibits BLX and BMX with IC50s of 35.6 and 5.7 nM respectively. BTK-IN-23 shows improved kinase selectivity compared to Ibrutinib (HY-10997)[1].
BMS-986195 is a potent, covalent, irreversible inhibitor of Bruton’s tyrosine kinase (BTK), with an IC50 of <1 nM.
BTK-IN-22 is a BTK inhibitor (IC50: 0.9 nM). BTK-IN-22 also inhibits BLX and BMX with IC50s of 1.4 and 1.2 nM respectively. BTK-IN-22 shows improved kinase selectivity compared to Ibrutinib (HY-10997)[1]
BTK inhibitor 8 (Compound 27) is a Btk inhibitor with an IC50 of 0.11 nM. BTK inhibitor 8 inhibits B cell activation in hWB with an IC50 of 2 nM[1].
BTK ligand 1 (compound 1) is a ligand targeting Bruton’s tyrosine kinase (Btk). BTK ligand 1 can combine with E3 ligase ligand (Ligand for E3 Ligase) through PROTAC Linker to form PROTAC. PROTACs targeting Btk can be used in the study of chronic lymphocytic leukemia (CLL) and other BK cell malignancies[1].
LFM-A13 is a potent BTK, JAK2, PLK inhibitor, inhibits recombinant BTK, Plx1 and PLK3 with IC50s of 2.5 μM, 10 μM and 61 μM; LFM-A13 shows no effects on JAK1 and JAK3, Src family kinase HCK, EGFR and IRK.
PTD10 is a highly potent PROTAC BTK degrader (DC50: 0.5 nM, KD: 2.28 nM). PTD10 degrades BTK in Ramos and JeKo-1 cells with DC50s of 0.5 and 0.6 nM respectively. PTD10 inhibits cell growth, and induces cell apoptosis via activation of the caspase-dependent pathway and mitochondrial pathway. PTD10 can be used for research of B-cell dysregulation[1].
CNX-774 is a potent, selective, and orally available small molecule inhibitor of Btk (IC50< 1 nM) that forms a ligand-directed covalent bond with Cys-481, a non-conserved amino acid within the active site of the enzyme.IC50 Value: <1 nM [1]Target: Btk KinaseIn biochemical assays, CNX-774 has demonstrated potent inhibition of Btk with an IC50 of <1nM in a continuous-read assay. The covalent bonding of CNX-774 to Btk was confirmed by incubating recombinant Btk protein with a 10-fold molar excess of CNX-774 for 1 hour at room temperature and analysis by MALDI-TOF MS. A shift of protein mass corresponding to the molecular weight of CNX-774 confirmed the covalent bonding of CNX-774 to Btk. Digestion of the covalently bonded Btk with pepsin followed by MSMS analysis established the bonding of CNX-774 to Cys-481. Cellular potency as well as prolonged duration of action of CNX-774 was demonstrated in Ramos cells by using a biotinylated covalent probe that targets the same Cysteine residue as CNX-774.CNX-774 was found to be >90% extractable after 2 hrs of incubation in both rat and human whole blood. These results demonstrate that CNX-774 has potent inhibitory activity towards the intended target, Btk, while achieving remarkable specificity in a variety of assays designed to assess off-target reactivity towards abundant cellular thiols and blood proteins.
TL-895 is a potent, orally active, ATP-competitive, and highly selective irreversible BTK inhibitor with an IC50 and a Ki of 1.5 nM and 11.9 nM, respectively[1]. TL-895 is used be for JAKi-relapsed/refractory myelofibrosis, acute myeloid leukemia, COVID-19 and cancer research[2][3][4].
BIIB091 is a highly selective, reversible BTK inhibitor for treating autoimmune diseases.
PF-06250112 is a potent, highly selective, orally bioavailable BTK inhibitor with an IC50 of 0.5 nM, shows inhibitory effect toward BMX nonreceptor tyrosine kinase and TEC with IC50s of 0.9 nM and 1.2 nM, respectively[1].
Larotinib is a potent broad-spectrum and orally active tyrosine kinase inhibitor (TKI) with EGFR as the main target with an IC50 of 0.6 nM[1].
Tirabrutinib (ONO-4059) hydrochloride is a selective and novel inhibitor of BTK with IC50 2.2 nm, Tirabrutinib binds to BTK within B cells, thereby preventing B-cell receptor signaling and impeding B-cell development.
The product is the analog of ONO-4059, ONO-4059 is a highly potent and selective Btk inhibitor with an IC50 in the sub-nM range. IC50 value: sub-nM range [2]Target: Btkin vitro: ONO-4059 ( analog ) is a selective, once-daily, oral inhibitor of BTK, which has been shown to play a role in the survival and proliferation of malignant B-cells. ONO-4059 (analog) shows a favourable safety profile along with promising efficacy in this difficult-to-treat patient population. [1]in vivo: ONO-4059 (analog) has demonstrated anti-tumour activity in several pre-clinical models.[1] ONO-4059 (analog) potently and dose-dependently reverse clinical arthritis and prevented bone damage in the CIA model.[2]
BTK inhibitor 19 is a highly selective, covalent BTK inhibitor (IC50 = 2.7 nM).