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GSK778 (iBET-BD1) 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 [1].
iBRD4-BD1 is selective BRD4 bromodomain inhibitor. iBRD4-BD1 has inhibition activity for BRD4 bromodomain with an IC50 value of 12 nM. iBRD4-BD1 can be used for the research of inflammation and oncology [1].
GSK778 (iBET-BD1) hydrochloride 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 [1].
dBRD4-BD1 is a selective and durable BRD4 degrader with an DC50 value of 280 nM (Dmax=77%). dBRD4-BD1 upregulates BRD2/3 protein level and shows low cytotoxicity than iBRD4-BD1[1].
iBRD4-BD1 diTFA is selective BRD4 bromodomain inhibitor. iBRD4-BD1 diTFA has inhibition activity for BRD4 bromodomain with an IC50 value of 12 nM. iBRD4-BD1 diTFA can be used for the research of inflammation and oncology [1].
BRD4-BD1-IN-2 is a selective BRD4-BD1 inhibitor, with an IC50 of 2.51 µM (20-times greater than that of BD2). BRD4-BD1-IN-2 can be used in studies of cancer and cardiovascular diseases [1].
XL-126 (Compound 33) is a potent BD1-selective BET inhibitor, with a Kd of 8.9 nM. XL-126 leads to both the preservation of platelets and potent anti-inflammatory efficacy by BD1 selectivity [1].
BRD4-BD1/2-IN-2 is a potent BRD4 BD2 inhibitor with IC50s of <0.5 nM and <300 nM for BRD4 BD2 and BRD4 BD1, respectively (WO2021233371A1, compound 2) [1].
ZL0590 is a potent, orally active BRD4 BD1-selective inhibitor with an IC50 of 90 nM for human BRD4 BD1. ZL0590 exhibits significant anti-inflammatory activities [1].
I-BET282 is a pan-inhibitor of all eight BET bromodomains, and selectivity over other representative bromodomain-containing proteins. I-BET282 shows pIC50s ranging 6.4-7.7 for BRD2 (BD1/BD2), BRD2 (BD1/BD), BRD3 (BD1/BD), and BRD4 (BD1/BD) .
I-BET282E is a pan-inhibitor of all eight BET bromodomains, and selectivity over other representative bromodomain-containing proteins. I-BET282E shows pIC50s ranging 6.4-7.7 for BRD2 (BD1/BD2), BRD2 (BD1/BD), BRD3 (BD1/BD), and BRD4 (BD1/BD) .
DW71177 is a novel [1,2,4]triazolo[4,3-a] quinoxaline-based potent and BD1-Selective BET inhibitor, and can be used for study of acute myeloid leukemia [1].
MS402 is a BD1-selective BET BrD inhibitor with Kis 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 [1].
PROTAC BRD4 Degrader-14 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4, with IC50s of 1.8 nM and 1.7 nM for BRD4 BD1 and BD2, respectively. PROTAC BRD4 Degrader-14 is capable of potently degrading the BRD4 protein in PC3 prostate cancer cells [1].
BRD4 Inhibitor-28 (Compound 18) is an orally active BRD4 Inhibitor. BRD4 Inhibitor-28 inhibits BRD40-BD1, BRD40-BD2 with IC50s of 15, 55 nM. BRD4 Inhibitor-28 also inhibits BRD2-BD1, BRD3-BD1, BRDT-BD1 with IC50s of 19, 25, 68 nM. BRD4 Inhibitor-28 has anti-melanoma activity [1].
MZ 1 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4. MZ 1 potently and rapidly induces reversible, long-lasting, and selective removal of BRD4 over BRD2 and BRD3. Kds of 382/120, 119/115, and 307/228 nM for BRD4 BD1/2, BRD3 BD1/2, and BRD2 BD1/2, respectively [1].
HJB97 is a high-affinity BET inhibitor with Kis 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), 1.0 nM (BRD4 BD2), respectively. HJB97 is employed for the design of potential PROTAC BET degrader and has antitumor activity [1].
PROTAC BRD4 Degrader-8 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4, with IC50s of 1.1 nM and 1.4 nM for BRD4 BD1 and BD2, respectively. PROTAC BRD4 Degrader-8 is capable of potently degrading the BRD4 protein in PC3 prostate cancer cells [1].
SJ1461 is a potent and orally active BET inhibitor. SJ1461 inhibits BRD2 (BD1), and BRD2 (BD2), BRD4 (BD1), and BRD4 (BD2) with IC50 values of 1.6 nM, 0.1 nM, 6.5 nM, and 0.2 nM, respectively [1].
I-BET567 is a potent and orally active inhibitor of pan-BET candidate with pIC50s of 6.9 and 7.2 for BRD4 BD1 and BD2, respectively. I-BET567 has been demonstrated efficacy in mouse models of oncology and inflammation [1].
PROTAC BRD4 Degrader-15 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4, with IC50s of 7.2 nM and 8.1 nM for BRD4 BD1 and BD2, respectively. PROTAC BRD4 Degrader-15 is capable of potently degrading the BRD4 protein in PC3 prostate cancer cells [1].
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 [1].
I-BET432 is a BET inhibitor. I-BET432 inhibits BRD4 N-terminal bromodomain (BD1) and the C-terminal bromodomain (BD2) with pIC50 values of 7.5 and 7.2, respectively. I-BET432 can be used as an oral candidate quality molecule for the research of multiple oncology and inflammatory diseases [1].
GSK789 is an effective, cell-permeable, and highly selective inhibitor of the BET family first bromodomain (BD1), with antitumor and immunomodulatory effects [1]
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[1].
GSK8814 is a potent, selective, and ATAD2/2B bromodomain chemical probe and inhibitor, with a binding constant pKd=8.1 and a pKi=8.9 in BROMOscan. GSK8814 binds to ATAD2 and BRD4 BD1 with pIC50s of 7.3 and 4.6, respectively. GSK8814 shows 500-fold selectivity for ATAD2 over BRD4 BD1[1].
CF53 is a highly potent, selective and orally active inhibitor of BET protein, with a Ki of <1 nM, Kd 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 [1].
Naringenin triacetate is a flavonoid isolated from plant, exhibits a good binding affinity with multiple crystal structures of first bromodomain BRD4 (BRD4 BD1) [1].
SDR-04 is a BET inhibitor and exhibits strong BRD4-BD1 affinity and inhibition activity. SDR-04 potently suppresses MV4;11 cancer cell line proliferation [1].
BY27 is a potent and selective BET BD2 inhibitor, shows 38, 5, 7, and 21-fold BD1/BD2 selectivity for BRD2, BRD3, BRD4, and BRDT. Anti-cancer activity [1].
ZEN-2759 is a potent BET (Bromodomain and Extra-Terminal Domain) inhibitor, with IC50 values of 0.23, 0.08 and 0.28 μM for BRD4(BD1), BRD4(BD2), and BRD4(BD1BD2), respectively [1].
BRD4 Inhibitor-23 is a potent and orally active BRD4 inhibitor with IC50s of 6.21 nM and 1.44 nM for BRD4 BD-1 and BRD4 BD-2, respectively (WO2022033542A1; Example 1) [1].
Apabetalone (RVX-208) is an inhibitor of BET transcriptional regulators with selectivity for the second bromodomain. The IC50s are 87 μM and 0.51 μM for BD1 and BD2, respectively [1].
ZL0420 is a potent and selective bromodomain-containing protein 4 (BRD4) inhibitor with IC50 values of 27 nM against BRD4 BD1 and 32 nM against BRD4 BD2.
GSK737 is a BRD4 BD1 and BD2 inhibitor, with pIC50 values of 5.3 and 7.3 respectively. GSK737 has low clearance and good solubility and permeability in rat [1].
BET-IN-15 (compound 1) is a potent and orally active BET inhibitor with IC50 values of 0.64, 0.25 nM for BRD4-BD1, BRD4-BD2, respectively. BET-IN-15 shows antiproliferative activity [1].
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[1].
ZEN-3219 is a BET inhibitor with IC50s of 0.48, 0.16 and 0.47 μM for BRD4(BD1), BRD4(BD2) and BRD4(BD1BD2), respectively. ZEN-3219 can be used to form PROTACs to induce degradation of BRD4 [1].
ZEN-3411 is a BET inhibitor with IC50s of 0.05, 0.05 and 0.06 μM for BRD4(BD1), BRD4(BD2) and BRD4(BD1BD2), respectively. ZEN-3411 can be used to form PROTACs to induce degradation of BRD4 [1].
ZEN-3862 is a BET inhibitor with IC50s of 0.16 and 0.13 μM for BRD4(BD1) and BRD4(BD2) , respectively. ZEN-3862 can be used to form PROTACs to induce degradation of BRD4 [1].
MS645 is a bivalent BET bromodomains (BrD) inhibitor with a Ki of 18.4 nM for BRD4-BD1/BD2. MS645 spatially constrains bivalent inhibition of BRD4 BrDs resulting in a sustained repression of BRD4 transcriptional activity in solid-tumor cells [1].
BRD4 Inhibitor-20 is a potent orally active bromodomain protein 4 (BRD4) inhibitor. BRD4 Inhibitor-20 has inhibitory activity for BRD4 (BD1) and BRD4 (BD2) with IC50 values of 19 nM and 28 nM, respectively. BRD4 Inhibitor-20 also has anti-proliferation activities in cancer cell lines. BRD4 Inhibitor-20 can be used for the research of kinds of cancer, such as colon cancer [1].
MS417 is a selective BET-specific BRD4 inhibitor, binds to BRD4-BD1 and BRD4-BD2 with IC50s of 30, 46 nM and Kds of 36.1, 25.4 nM, respectively, with weak selectivity at CBP BRD (IC50, 32.7 μM).
GS-626510 is a potent, and orally active BET family bromodomains inhibitor, with Kd 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 [1].
BRD4 Inhibitor-27 (compound 6) is a BRD4 inhibitor with IC50 of 9.6 and 11.3 μM for BRD4 BD1 and BRD4 BD2, respectively. BRD4 Inhibitor-27 has the potential to study cancer [1].
PLK1/BRD4-IN-2 (compound 15) is a BI-2536 (HY-50698) analog and dual inhibitor that targets both Polo-like kinase 1(PLK1) and BRD4bromodomain (BRD4-BD1IC50=28 nM, PLK1IC50=40 nM) [1].
GSK097 is a potent and selective Inhibitor of the second bromodomain (BD2) of the bromodomain and extra-terminal domain (BET) proteins. GSK097 displays 2000-fold selective for BD2 over BD1 (BRD4 data) with >1 mg/mL solubility in FaSSIF media [1].
(S)-GNE-987 (compound 4), the GNE-987 (a chimeric BET degrader) hydroxy-proline epimer, abrogates binding to von Hippel-Lindau and does not degrade BRD4 protein. (S)-GNE-987 binds to the BRD4 BD1(IC50=4 nM) and BD2 (3.9 nM) bromodomains and can be used to design PROTAC-Antibody Conjugate (PAC) [1].
PROTAC BRD4 Degrader-1 is a PROTAC connected by ligands for Cereblon and BRD4 with an IC50 of 41.8 nM against BRD4 BD1. PROTAC BRD4 Degrader-1 can effectively degrade BRD4 protein and suppress c-Myc expression [1].
ZL0580, a structurally close analog of ZL0590, induces epigenetic suppression of HIV via selectively binding to BD1 domain of BRD4. ZL0580 induces HIV suppression by inhibiting Tat transactivation and transcription elongation as well as by inducing repressive chromatin structure at the HIV promoter [1] .
BRD4 Inhibitor-31 (Example 136) is a BRD4 inhibitor (Kis: 0.234 μM and 0.295 μM for BRD4 BD1 and BRD4 BD2 respectively). BRD4 Inhibitor-31 can be used for research of inflammatory diseases, cancer, and AIDS [1].
CD161 (NKR-P1A) is a potent, selective and orally bioavailable bromodomain and extra-terminal (BET) bromodomain inhibitor with an IC50s of 28.2 nM and 7.2 nM for BRD4 BD1 and BRD4 BD2, respectively. CD161 has good anticancer activity [1].
GSK040 is a potent and highly selective BET BD2 inhibitor, with a pIC50 of 8.3. GSK040 shows more than 5000-fold selectivity for BET BD2 over BET BD1 (pIC50=4.6). GSK040 can be used for the research of oncology and immunology diseases [1].
PLX51107 is a potent and selective BET inhibitor, with Kds of 1.6, 2.1, 1.7, and 5 nM for BD1 and 5.9, 6.2, 6.1, and 120 nM for BD2 of BRD2, BRD3, BRD4, and BRDT, respectively; PLX51107 also interacts with the bromodomains of CBP and EP300 (Kd, in the 100 nM range).
(E/Z)-ZL0420 is a racemic compound of (Z)-ZL0420 and (E)-ZL0420 isomers. (E)-ZL0420 is a potent and selective bromodomain-containing protein 4 (BRD4) inhibitor with IC50 values of 27 nM against BRD4 BD1 and 32 nM against BRD4 BD2 [1].
GXF-111, a PROTAC molecule, can promote selective degradation of cellular BRD3 and BRD4-L. GXF-111 has binding affinities for BRD3 BD1 and BRD3 BD2 with Ki values of 11.97 nM and 2.35 nM, respectively. GXF-111 can be used for the research of cancer [1].
BRD4 Inhibitor-26 is a bromodomain protein 4 (BRD4) inhibitor/nitric oxide-donator. BRD4 Inhibitor-26 inhibits BRD4 (BD1) and BRD4 (BD2) with IC50 values of 0.82 μM and 1.94 μM, respectively. BRD4 Inhibitor-26 can be used for the research of ovarian cancer [1].
cis-MZ 1 hydrate is a negative control for BRD4-targeted PROTAC MZ 1 (HY-107425). cis-MZ 1 or MZ 1 is a combination of the von Hippel-Lindau ligand (red part in the structural formula) and the BRD4 ligand (blue part in the structural formula). The Kd of MZ 1 for BRD4 BD1/2 was 382 nM and 120 nM, respectively [1].
PROTAC BRD4 Degrader-7 is a potent bromodomain BRD4 degrader extracted from patent WO2020055976A1, example 1a, has IC50s of 15.5 and 12.3 nM for BRD4-BD1 and BRD4-BD2, respectively [1]. PROTAC BRD4 Degrader-7 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
BRD4 Inhibitor-25 is a BRD4 inhibitor with IC50s of 0.82 μM, 1.94 μM for BD1 and BD2 domains of BRD4. BRD4 Inhibitor-25 induces apoptotic and autophagy cell death in ovarian cancer cells. BRD4 Inhibitor-25 can be used in the research of cancers, cardiovascular, neuromuscular and inflammatory disorders.
BET-IN-20 (compound 10) is an inhibitor of BRD4 BD1(IC50=1.9 nM) with anticancer activity. BET-IN-20 can promote acute myeloid leukemia (AML) cell apoptosis and arrest the cell cycle in the G0/G1 phase. BET-IN-20 also inhibits c-Myc and CDK6 and enhances PARP cleavage [1].
PROTAC BRD4 Degrader-6 (compound 32a) is a potent small-molecule BRD4 degrader with IC50 value of 2.7 nM for BRD4 BD1. PROTAC BRD4 Degrader-6 potently degrades BRD4 protein and inhibits the expression of c-Myc. PROTAC BRD4 Degrader-6 inhibits the proliferation of pancreatic cancer cell line BxPC3 and induces apoptosis. PROTAC BRD4 Degrader-6 can be used for human pancreatic cancer research [1].
SRX3177 is a triple inhibitor of CDK4/6, PI3K, and BRD4, with IC50s of 33 nM (BRD4 BD1), 89 nM (BRD4 BD2), 79 nM (PI3Kα), 83 nM (PI3Kδ), 3.18 μM (PI3Kγ), <2.5 nM (CDK4), 3.3 nM (CDK6), respectively. SRX3177 exerts broad cytotoxic activity against cancer cells, but acts friendly with normal epithelial cells [1].
GSK973 is a highly selective, orally bioavailable inhibitor of the BD2s (second bromodomains) of the BET family, with a pIC50 of 7.8 and a pKd 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; pKd=8.3~8.5) [1].
SB-284851-BT is an inhibitor of BRD4/p38α/BRDT. SB-284851-BT inhibits BRD4-BD1(IC50=1.7 µM), p38α (Kd=0.47 nM), BRDT (1) (IC50=18 µM) and BRD4(1)(IC50=3.7 µM). SB-284851-BT reduces IL-8 production by inhibiting p38α, as well as inhibiting BRD4 to down-regulates c-Myc and NF-κB gene pathways in cancer. SB-284851-BT can combined with the bromine domain and extra terminal (BET) [1] .
GNE-987 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4. 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 incorporates a potent BET binder/inhibitor, a VHL-binding fragment, and a ten methylene spacer moiety. GNE-987 can be used in PROTAC-Antibody Conjugate (PAC) [1].
dBET57 is a potent and selective degrader of BRD4BD1 based on the PROTAC technology. dBET57 mediates recruitment to the CRL4 Cereblon E3 ubiquitin ligase, with a DC50/5h of 500 nM for BRD4BD1, and is inactive on BRD4BD2[1].
XY-06-007 is a selective and potent bump-and-hole (B&H)-PROTACBRD4BD1L94V degrader. XY-06-007 shows a DC50, 6 h of 10 nM against BRD4BD1L94V with no degradation of off-targets. XY-06-007 demonstrates suitable pharmacokinetics for in vivo studies [1].
Naringenin triacetate is a flavonoid isolated from plant, exhibits a good binding affinity with multiple crystal structures of first bromodomain BRD4 (BRD4 BD1) [1].