BRD4 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.

dBET1 is a PROTAC connected by ligands for Cereblon and BRD4 with an EC₅₀ of 430 nM. dBET1 is a PROTAC that composes of (+)-JQ1 (HY-13030) linked to NSC 527179 (HY-14658) with a linker.

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.

Zavabresib (OPN-2853; PLX2853; BET-IN-16) is an orally active inhibitor of the BET family of proteins. Zavabresib blocks bromodomain-mediated interactions, reduces BRD4 enrichment at the regulatory regions of transcription factors in T cells, exerts tumor growth inhibitory effects, and enhances the efficacy of immunotherapy. Zavabresib is applicable to research on chronic lymphocytic leukemia, castration-resistant prostate cancer, diffuse large B-cell lymphoma, colon adenocarcinoma, and myelofibrosis.

Pelabresib (CPI-0610) is a potent, selective, orally active and cell-active BET inhibitor. Pelabresib inhibits BRD4-BD1 with an IC₅₀ of 39 nM, and with an EC₅₀ value of 0.18 μM for MYC.

Mivebresib (ABBV-075) is a potent and orally active bromodomain and extraterminal domain (BET) bromodomain inhibitor. Mivebresib binds to BRD4 with a K_i of 1.5 nM.

GNE-987 is a VHL-dependent BRD4 PROTAC degrader. GNE-987 exhibits picomolar cell BRD4 degradation activity (DC₅₀=0.03 nM for EOL-1 AML cell line). GNE-987 binds equipotently to the BD1 and BD2 bromodomains of BRD4 with low nanomolar affinities (IC₅₀=4.7 and 4.4 nM, respectively). GNE-987 can be used for the research of cancer.

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.

ZXH-3-26 is a PROTAC connected by ligands for Cereblon and BRD4 with a DC_50/5h of 5 nM. The DC_50/5h refers to half-maximal degradation after 5 hours of treatment of ~ 5 nM.

XMD8-92 is a potent ERK5 (BMK1)/BRD4 inhibitor with K_ds of 80 and 190 nM, respectively. XMD8-92 inhibits DCAMKL2, PLK4 and TNK1 with K_ds of 190, 600 and 890 nM, respectively. Anti-cancer activity.

CPI-637 is a selective and potent CBP/EP300 bromodomain inhibitor with IC₅₀ values of 0.03 μM, 0.051 μM and 11.0 μM for CBP, EP300 and BRD4 BD-1, respectively, and an EC₅₀ of 0.3 μM for CBP.

AR/BRD4 RIPTAC-1 (Compound II-5) is an orally active Regulatory-inducible proximity-targeting chimera (RIPTAC). AR/BRD4 RIPTAC-1 induces the formation of a stable ternary complex between the androgen receptor (AR) and BRD4, thereby blocking BRD4 function. AR/BRD4 RIPTAC-1 inhibits the growth and proliferation of tumor cells. AR/BRD4 RIPTAC-1 holds promise for use in prostate cancer research.

A1874 is a nutlin-based (MDM2 ligand) and BRD4-degrading PROTAC with a DC₅₀ of 32 nM (induce BRD4 degradation in cells). Effective in inhibiting many cancer cell lines proliferation.

FKBP12 PROTAC dTAG-7 (dTAG-7) is a FKBP12^F36V PROTAC degrader. FKBP12 PROTAC dTAG-7 binds FKBP12^F36V and CRBN to form a complex, mediating degradation via the ubiquitin-proteasome system. FKBP12 PROTAC dTAG-7 mediates the degradation of FKBP12^F36V-tagged nuclear and cytoplasmic proteins, including BRD4, HDAC1, EZH2, MYC, PLK1, KRAS^G12V, and antigen fusion proteins. FKBP12 PROTAC dTAG-7 enhances MHC class I antigen presentation. FKBP12 PROTAC dTAG-7 is applicable to leukemia-related research.

BRD4 degrader AT1 is a selective PROTAC BRD4 degrader. BRD4 degrader AT1 induces depletion of Brd4 protein in cells. BRD4 degrader AT1 exhibits highly selective depletion of Brd4 over Brd2 and Brd3 in cells.

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.

GNE-207 is a potent, selective and orally bioavailable inhibitor of the bromodomain of CBP, with an IC₅₀ of 1 nM, exhibits a selectively index of >2500-fold against BRD4 (1). GNE-207 shows excellent CBP potency, with an EC₅₀ of 18 nM for MYC expression in MV-4-11 cells.

I-BET762 carboxylic acid (Molibresib carboxylic acid) is an I-BET762-based warhead ligand for conjugation reactions of PROTAC targeting on BET. I-BET762 carboxylic acid (Molibresib carboxylic acid) is a BRD4 inhibitor with a pIC₅₀ of 5.1.

QCA570 is a PROTAC connected by ligands for Cereblon and BET, with an IC₅₀ of 10 nM for BRD4 BD1 Protein.