bd2

PBRM1-BD2-IN-2, a selective and cell-active inhibitor of the polybromo-1 (PBRM1) bromodomain, exhibits binding affinity and inhibitory activity specifically targeting the PBRM1-BD2 domain, with Kd and IC50 values of 9.3 μM and 1.0 μM, respectively. This compound is utilized in cancer research.

PBRM1-BD2-IN-3 (compound 12) is a potent inhibitor of PBRM1-BD2, exhibiting an IC50 value of 1.1 μM, and is utilized in anticancer research.

PBRM1-BD2-IN-7, a selective and cell-active inhibitor targeting the polybromo-1 (PBRM1) bromodomain, demonstrates inhibitory efficacy against PBRM1-BD2 with an IC50 value of 0.29 μM. This compound is utilized in cancer research.

PBRM1-BD2-IN-8 (compound 34) is a potent PBRM1 Bromodomain inhibitor (PBRM1-BD2 Kd=4.4 μM, PBRM1-BD2 IC50=0.16 μM; PBRM1-BD5 Kd=25 μM). PBRM1-BD2-IN-8 shows anti-cancer activity.

PBRM1-BD2-IN-5 is a potent inhibitor of the PBRM1 Bromodomain, demonstrating dissociation constant (Kd) values of 1.5 μM and 3.9 μM for PBRM1-BD2 and PBRM1-BD5, respectively, and boasts an inhibitory concentration 50 (IC50) value of 0.26 μM for PBRM1-BD2. This compound effectively diminishes the interaction between the full-length PBRM1 and acetylated histone peptide within the PBAF complex in cell lysates, which positions it as a promising candidate for anticancer research.

BD-AcAc 2 (Ketone Ester) is a ketone monoester and can be used as a source of oral nutritional ketones. BD-AcAc 2 can elevate plasma levels of acetoacetate and β-hydroxybutyrate, blood Na+, blood glucose levels and blood creatinine levels after oral administration in mice. BD-AcAc 2 can partly prevent muscle weakness in septic mice. BD-AcAc 2 exhibits potential to improve endurance and exercise performance in animal body. BD-AcAc 2 can also be used to research diabetes or Parkinson’s disease.

PBRM1-BD2-IN-6, a potent inhibitor of the PBRM1 bromodomain, exhibits an IC50 value of 0.22 µM and demonstrates antiproliferative activity. It holds potential for research in PBRM1-dependent cancer treatment.

PBRM1-BD2-IN-1 is a selective and cell-active inhibitor of the polybromo-1 (PBRM1) bromodomain, displaying binding affinity and inhibitory efficacy with Kd and IC50 values of 0.7 μM and 0.2 μM, respectively. This compound is utilized in cancer research.

BET BD2-IN-1 (compound 45) is a potent, selective inhibitor of BET BD2, exhibiting an IC50 value of 1.6 nM. It suppresses Th17 cell differentiation through the reduced activation of STAT3 and NF-κB, making it relevant in research on psoriasis and inflammatory bowel disease (IBD) [1].

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

(S,S)-BD-AcAc 2 ((S,S)-Ketone Ester), an (S,S)-enantiomer of BD-AcAc 2, increases AcAc and acetone levels, inducing sustained ketosis and significantly delaying seizures associated with central nervous system oxygen toxicity (CNS-OT).

BRD4 Inhibitor-27 is a potent BRD4 inhibitor that inhibits BRD4 BD1 and BRD4 BD2 with IC50s of 9.6 and 11.3 μM, respectively.BRD4 Inhibitor-27 has anticancer activity and can be used for breast cancer research.

BRD4-BD1-IN-2 is a selective and potent BRD4-BD1 inhibitor with an IC50 value of 2.51 µM, which is 20-fold greater than the inhibitory activity against BRD4-BD2.BRD4-BD1-IN-2 can be used in the study of cardiovascular and cancer-related diseases.

BY27 is a potent and selective BET BD2 inhibitor (Ki: 3.1 nM) with anticancer activity, inhibits BD1/BD2 of BRD2, BRD3, BRD4 and BRDT, and suppresses tumor growth.

ZEN-3411 is an orally available and potent BET inhibitor that inhibits BRD4(BD1), BRD4(BD2), and BRD4(BD1BD2) and suppresses the growth of tumor cells overproducing BET proteins.

GSK040, a potent and highly selective inhibitor of BET BD2, exhibits a pIC50 of 8.3, demonstrating over 5000-fold selectivity against BET BD1 (pIC50=4.6). This compound is primarily utilized in oncology and immunology research [1].This compound is unstable in powder form and other related salt forms are recommended.

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.

LT052, a highly active and selective BET BD1 inhibitor with an IC50 of 87.7 nM, demonstrates nanomolar BRD4 BD1 potency and significant selectivity, being 138-fold more selective for BRD4 BD1 over BRD4 BD2 (IC50 =12.130 μM). Its anti-inflammatory properties make it a potential candidate for acute gout arthritis research [1].

ABBV-744 is a BDII-selective BET bromodomain inhibitor that inhibits BRD2/3/4. It is used in the research on inflammatory diseases, cancer, and AIDS.

SGC-UBD253 is a potent antagonist of the HDAC6-UBD interaction and may be utilized in cancer research [1].

MZP-54 is a selective degrader of BRD3/4 based on PROTAC technology(Kd of 4 nM for Brd4BD2)

GSK097 is a highly potent and selective inhibitor of the second bromodomain (BD2) found in bromodomain and extra-terminal domain (BET) proteins. It exhibits a remarkable 2000-fold selectivity for BD2 over BD1, as indicated by BRD4 data. Additionally, GSK097 demonstrates solubility of over 1 mg/mL in FaSSIF media.

MS402 is a novel BD1-selective BET BrD inhibitor.

MMH2 is a novel molecular glue degrader targeting BRD4 by facilitating the recruitment of CUL4 and DCAF16 ligases to BRD4's second bromodomain (BRD4 BD2) [1].

RVX-297 is a BD2 selective inhibitor of BET bromodomains. RVX-297 preferentially binds to the BD2 domains of the BET bromodomain and Extra Terminal (BET) family of protein.

MZP-55 is a selective BRD3/4 degrader based on PROTAC technology(Brd4BD2 with Kd of 8 nM)

GSK973 is a highly selective and orally bioavailable inhibitor that targets the second bromodomains (BD2s) of the BET family. It exhibits a pIC 50 of 7.8 and a pK d of 8.7 specifically for BRD4 BD2. Additionally, GSK973 demonstrates a remarkable selectivity of 1600-fold for BRD4 BD2 over BRD4 BD1. Moreover, it displays good potency against BRD2 BD2, BRD3 BD2, and BRDT BD2, with pIC 50 ranging from 7.4 to 7.8 and pK d ranging from 8.3 to 8.5.

BRD4 degrader AT1 is a highly selective Brd4 degrader based on PROTAC technology, with a Kd of 44 nM for Brd4BD2 in cells.

MMH1, a novel molecular glue degrader of BRD4, operates by enlisting the CUL4 and DCAF16 ligases to target the second bromodomain (BRD4 BD2) [1].

N1-[5-[[[3-(4-Amino-2-methylphenyl)-1-methyl-1H-indazol-5-yl]carbonyl]amino]-2-methylphenyl]-N4-methyl-1,4-benzenedicarboxamide is a potent, selective second bromodomain (BD2) of BRDT and BRD4 inhibitor with IC50 of 7 and 25 nM, >1,000-fold and 300-fold selectivity over BRDT-BD1 and BRD4-BD1.

GW841819X is an analogue of (+)-JQ1 and a novel inhibitor of BET bromodomains. GW841819X was a single enantiomer but of undefined chirality at the 4-position of the benzodiazepine ring3. GW841819X and JQ1 were recently discovered that bind to the acetyl-lysine binding pocket of BET bromodomains with Kd ranges from 50 to 370 nM [1]. GW841819X bounded to both the individual BD1 and BD2 domains with affinities of 46 and 52.5 nM, respectively. GW841819X-Brd3 interaction was estimated to be around 70 nM4. GW841819X displayed activity in vivo against NUT-midline carcinoma, multiple myeloma, mixed-lineage leukemia, and acute myeloid leukemia1. It also potent induced the ApoA1 reporter gene with an EC50 of 440 nM. It had very little effect on LDL-R luciferase activity at the concentrations at which it induces ApoA1 expression, suggesting that the effect is indeed specific3. GW841819X competed directly with GATA1 site for BD1 binding and also specifically blocked the interaction between Brd3 and acetylated GATA14. Recent findings reported that GW841819X are chose as an interest compound to further develop into potential drugs against diseases including cancer, HIV infection and heart disease2.

GNE-987 is a highly active chimeric BET degrader. 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 exhibits picomolar cell BRD4 degradation activity (DC50: 0.03

BRD4 Inhibitor-28 (Compound 18), an orally active molecule, selectively inhibits the bromodomains of BRD4 (BRD4-BD1 and BRD4-BD2) with IC50 values of 15 and 55 nM, respectively. It also demonstrates inhibition of BRD2-BD1, BRD3-BD1, and BRDT-BD1 with IC50 values of 19, 25, and 68 nM, respectively. Furthermore, this compound exhibits anti-melanoma activity [1].

GSK217 is a potent and selective inhibitor of the bromo and extraterminal domain (BET) second bromodomain (BD2) with high solubility, utilized in oncology and immune inflammation research [1].

GXF-111, a proteolysis targeting chimera (PROTAC) molecule, efficiently induces the selective degradation of the BRD3 and BRD4-L proteins. It exhibits high binding affinities to both BRD3 BD1 and BRD3 BD2, with K i values of 11.97 nM and 2.35 nM, respectively. This compound is utilized in cancer research [1].

BET-IN-17, also known as compound 16, serves as a pan-inhibitor for BET, exhibiting inhibitory potencies (pIC50) of 7.8 for BET BD1 and 7.6 for BET BD2 [1].

XY153 (compound 8l) is a BD2 selective BET inhibitor that selectively binds BRD4 BD2. XY153 binds BRD4 BD2 (IC50: 0.79 nM), BRD3 BD2 (IC50: 5.31 nM) and BRD2 BD2 (IC50: 5.09 nM). XY153 can be used to study acute myeloid leukaemia and cancer.

N-[5-[[[3-(6-Amino-4-methylpyridin-3-yl)-1-methyl-1H-indazol-5-yl]carbonyl]amino]-2-methylphenyl]-N′-methylterephthalamide had an IC50 value of 22 nM in a BD2 DEC-Tec assay.

ARV-825, a heterobifunctional PROTAC (Proteolysis Targeting Chimera) that recruits BRD4 to the E3 ubiquitin ligase cereblon leading to fast, efficient, and prolonged degradation of BRD4 in all BL cell lines tested.

PLX51107 is a potent and selective BET inhibitor (Kds: 1.6, 2.1, 1.7, and 5 nM for BRD2-BD1, BRD3-BD1, BRD4-BD1, and BRDT-BD1).

ZEN-3862 (Willardiine) is an inhibitor of BET(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.

PROTAC BRD4 Degrader-14, a PROTAC (Proteolysis Targeting Chimera) linked by ligands to von Hippel-Lindau and BRD4, exhibits IC50 values of 1.8 nM and 1.7 nM for BRD4 BD1 and BD2, respectively. This compound effectively degrades the BRD4 protein in PC3 prostate cancer cells [1].

PROTAC BRD4 Degrader-17 (compound 13i), a potent inhibitor, exhibits IC50 values of 29.54 nM (BRD4 (BD1)) and 3.82 nM (BRD4 (BD2)), effectively reducing Cyclin B1 expression linked with G2/M phase progression and significantly inducing apoptosis in MV-4-11 cells [1].

PROTAC BRD4 Degrader-8 is a potent BRD4 inhibitor, 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]. PROTAC BRD4 Degrader-8 (compound 8; 6 days) inhibits the proliferation of PC3 prostate cancer cells, with an IC50 of 28 nM[1].PROTAC BRD4 Degrader-8 (4 h) suppresses MYC gene transcript in MV4-11 AML cells, with an IC50 of 11 nM[1].PROTAC BRD4 Degrader-8 (4 h) potently degrades the BRD4 protein in PC3 prostate cancer cells, with an DC50 of 7.5 nM[1]. [1]. Dragovich PS, et, al. Antibody-Mediated Delivery of Chimeric BRD4 Degraders. Part 2: Improvement of In Vitro Antiproliferation Activity and In Vivo Antitumor Efficacy. J Med Chem. 2021 Mar 11;64(5):2576-2607.

N1-Methyl-N4-[2-methyl-5-[[[1-methyl-3-(1-methyl-1H-indol-2-yl)-1H-indazol-5-yl]carbonyl]amino]phenyl]-1,4-benzenedicarboxamide (ACI) showed high affinity in BD2 DEC-Tec assay with an IC50 value of 13 nM.

N1-[5-[[[3-(2-Amino-5-pyrimidinyl)-1-methyl-1H-indazol-5-yl]carbonyl]amino]-2-methylphenyl]-N4-methyl-1,4-benzenedicarboxamide (ACI) had an IC50 value of 139 nM in the BD2 DEC-Tec assay.

N1-[5-[[[3-(4-Methoxyphenyl)-1-methyl-1H-indazol-5-yl]carbonyl]amino]-2-methylphenyl]-N4-methyl-1,4-benzenedicarboxamide (ACI) in BD2 DEC-Tec assay with an affinity value of 521 nM.

N-[5-[[[3-(6-Amino-2-methylpyridin-3-yl)-1-methyl-1H-indazol-5-yl]carbonyl]amino]-2-methylphenyl]-N′-methylterephthalamide had an IC50 value of 94 nM in a BD2 DEC-Tec assay.

MS645 is an inhibitor of bromodomain-containing protein 4 (BRD4) with a Ki of 18.4 nM for BRD4-BD1/BD2.

INCB054329, a structurally distinct bromodomain and extraterminal domain (BET) inhibitor, inhibits BRD2-BD1, BRD2-BD2, BRD3-BD1, BRD3-BD2, BRD4-BD1, BRD4-BD2, BRDT-BD1 and BRDT-BD2 with IC50 values of 44 nM, 5 nM, 9 nM, 1 nM, 28 nM, 3 nM, 119 nM and 63 nM respectively.