BRD3 Inhibitor

(+)-JQ-1 (JQ1), a chemical probe, is a potent, specific, CNS-penetrant and reversible BET bromodomain inhibitor, with IC₅₀s of 77 and 33 nM for the first and second bromodomain (BRD4(1/2)). (+)-JQ-1 also activates autophagy.

JQ-1 carboxylic acid, a (+)-JQ-1 (HY-13030) derivative, is a potent BET bromodomain inhibitor. JQ-1 carboxylic acid can be used to synthesize PROTAC, which can target the degradation of BRD4.

ABBV-744 is a first-in-class, orally active and selective inhibitor of the BDII domain of BET family proteins with IC₅₀ values ranging from 4 to 18 nM for BRD2, BRD3, BRD4 and BRDT. ABBV-744 is primarily metabolized by CYP3A4 with agent-like properties enable the investigation of its antitumor efficacy and tolerability.

GSK778 (iBET-BD1), a chemical probe, is a potent and selective BD1 bromodomain inhibitor of the BET proteins, with IC₅₀s of 75 nM (BRD2 BD1), 41 nM (BRD3 BD1), 41 nM (BRD4 BD1), and 143 nM (BRDT BD1), respectively. GSK778 phenocopies the effects of pan-BET inhibitors in cancer models.

BET-IN-30 (Compound 11d) is a BTE family protein inhibitor, which can act as a BRD2/BRD3/BRD4 target protein ligand and be used for the synthesis of PROTACs, such as PROTAC BET Degrader-15 (HY-181729). BET-IN-30 exhibits potent anti-proliferative activity against acute myeloid leukemia (AML) cells such as MV4-11. BET-IN-30 can be used for the study of AML.

GSK046 (iBET-BD2), a chemical probe, is a potent, selective and orally active BD2 bromodomain inhibitor of the BET proteins, with IC₅₀s of 264 nM (BRD2 BD2), 98 nM (BRD3 BD2), 49 nM (BRD4 BD2) and 214 nM (BRDT BD2), respectively. GSK046 has immunomodulatory activity.

GSK973, a chemical probe, is a highly selective, orally bioavailable inhibitor of the BD2s (second bromodomains) of the BET family, with a pIC₅₀ of 7.8 and a pK_d of 8.7 for BRD4 BD2. GSK973 displays a 1600-fold selectivity for BRD4 BD2 over BRD4 BD1. GSK973 shows good potency against BRD2 BD2, BRD3 BD2, and BRDT BD2 (pIC₅₀=7.4~7.8; pK_d=8.3~8.5).

BETd-260 (ZBC 260) is a PROTAC connected by ligands for Cereblon and BET, with as low as 30 pM against BRD4 protein in RS4;11 leukemia cell line. BETd-260 potently suppresses cell viability and robustly induces apoptosis in hepatocellular carcinoma (HCC) cells.

LT052 is a highly selective BET BD1 inhibitor with an IC₅₀ of 87.7 nM. LT052 exhibits nanomolar BRD4 BD1 potency and 138-fold selectivity over BRD4 BD2 (IC₅₀=12.130 μM). LT052 has anti-inflammatory?activity and can be used for acute gout arthritis research.

(S)-JQ-35 (TEN-010) is an orally active, blood-brain barrier-permeable bromodomain inhibitor that selectively targets the bromodomain and extra-terminal domain (BET) protein family (BRD4, BRD3, BRD2 and BRDT). (S)-JQ-35 blocks the activation of Myc gene expression by BRD4, thereby inhibiting cancer cell proliferation and promoting cancer cell apoptosis. (S)-JQ-35 can be used in research related to NUT midline carcinoma and neuroblastoma.

PROTAC BET Degrader-1 is a BRD2/BRD3/BRD4 PROTAC degrader. PROTAC BET Degrader-1 inhibits the growth of acute leukemia cells. PROTAC BET Degrader-1 is applicable to the research of acute leukemia.

HJB97 is a high-affinity BET inhibitor with K_i values of 0.9 nM (BRD2 BD1), 0.27 nM (BRD2 BD2), 0.18 nM (BRD3 BD1), 0.21 nM (BRD3 BD2), 0.5 nM (BRD4 BD1), and 1.0 nM (BRD4 BD2). HJB97 can serve as a ligand for target protein (Ligands for Target Protein for PROTAC) for the development of PROTAC BET degraders with antitumor activity. HJB97 can be used for the synthesis of BETd-260 (HY-101519).

RVX-297 is a potent, orally active BET bromodomain inhibitor with selectivity for BD2. RVX-297 shows IC₅₀s of 0.08, 0.05, and 0.02 μM for BRD2(BD2), BRD3(BD2), and BRD4(BD2), respectively. RVX-297 suppresses inflammatory gene expression in multiple immune cell types. RVX-297 is effective in acute inflammation and autoimmunity models.

GS-626510 is a potent, and orally active BET family bromodomains inhibitor, with K_d values of 0.59-3.2 nM for BRD2/3/4, with IC₅₀ values of 83 nM and 78 nM foe BD1 and BD2, respectively.

MS402 is a BD1-selective BET BrD inhibitor with K_is of 77 nM, 718 nM, 110 nM, 200 nM, 83 nM, and 240 nM for BRD4(BD1), BRD4(BD2), BRD3(BD1), BRD3(BD2), BRD2(BD1) and BRD2(BD2), respectively. MS402 blocks Th17 cell differentiation and ameliorates colitis in mice.

CF53 is a highly potent, selective and orally active inhibitor of BET protein, with a K_i of <1 nM, K_d of 2.2 nM and an IC₅₀ of 2 nM for BRD4 BD1. CF53 binds to both the BD1 and BD2 domains of BRD2, BRD3, BRD4, and BRDT BET proteins with high affinities, very selective over non-BET bromodomain-containing proteins. CF53 shows potent anti-tumor activity both in vitro and in vivo.

BET bromodomain inhibitor 1 is an orally active, selective bromodomain and extra-terminal (BET) bromodomain inhibitor with an IC₅₀ of 2.6 nM for BRD4. BET bromodomain inhibitor 1 binds to BRD2(2), BRD3(2), BRD4(1), BRD4(2), and BRDT(2) with high affinities (K_d values of 1.3 nM, 1.0 nM, 3.0 nM, 1.6 nM, 2.1 nM, respectively). bromodomain inhibitor 1 has anti-cancer activity.

BETd-246 is a BRD2/3/4 PROTAC degrader targeting the BET family. BETd-246 induces ubiquitination and proteasomal degradation of BRD2, BRD3 and BRD4 by recruiting the CUL4-RBX1-DDB1-CRBN E3 ubiquitin ligase complex; it also inhibits TRAT1 expression and depletes BET proteins. BETd-246 suppresses cancer cell proliferation and invasion, disrupts the cell cycle and induces apoptosis. BETd-246 is applicable to research related to triple-negative breast cancer and T-cell acute lymphoblastic leukemia.

PROTAC BET degrader-2 is a BET PROTAC degrader. PROTAC BET degrader-2 induces dose-dependent degradation of BRD2, BRD3 and BRD4 proteins in leukemia cells. PROTAC BET degrader-2 inhibits the growth of acute leukemia cells. PROTAC BET degrader-2 can be used for the research of acute leukemia.

OARV-771 is a VHL-based BET degrader (PROTAC) with improved cell permeability. OARV-771 shows DC₅₀s of 6, 1, and 4 nM for Brd4, Brd2 and Brd3, respectively.