GSK 525762A
Background- Product Name
- GSK 525762A
- CAS No.
- 1260907-17-2
- Chemical Name
- GSK 525762A
- Synonyms
- I-BET-762;GSK525762;Molibresib;GSK 525762A;IBET762(GSK525762A);Molibresib (I-BET762;GSK525762 (I-BET-762);GSK 525762A USP/EP/BP;GSK 525762A (I-BET-762);Molibresib (GSK 525762A)
- CBNumber
- CB42627926
- Molecular Formula
- C22H22ClN5O2
- Formula Weight
- 423.9
- MOL File
- 1260907-17-2.mol
GSK 525762A Property
- Melting point:
- >132°C (dec.)
- Density
- 1.35
- storage temp.
- 2-8°C
- solubility
- Soluble in DMSO (up to at least 25 mg/ml) or in Ethanol (up to at least 25 mg/ml)
- form
- powder
- pka
- 15.71±0.46(Predicted)
- color
- white to beige
- optical activity
- [α]/D +80 to +90°, c = 0.3 in methanol
- Stability:
- Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 3 months.
- InChI
- 1S/C22H22ClN5O2/c1-4-24-20(29)12-18-22-27-26-13(2)28(22)19-10-9-16(30-3)11-17(19)21(25-18)14-5-7-15(23)8-6-14/h5-11,18H,4,12H2,1-3H3,(H,24,29)/t18-/m0/s1
- InChIKey
- AAAQFGUYHFJNHI-SFHVURJKSA-N
- SMILES
- Clc1ccc(cc1)C2=N[C@H](c3[n](c(nn3)C)c4c2cc(cc4)OC)CC(=O)NCC
Safety
- WGK Germany
- WGK 2
- Storage Class
- 10 - Combustible liquids
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- SML1272
- Product name
- I-BET762
- Purity
- ≥98% (HPLC)
- Packaging
- 5MG
- Price
- $161
- Updated
- 2026/03/19
- Product number
- SML1272
- Product name
- I-BET762
- Purity
- ≥98% (HPLC)
- Packaging
- 25MG
- Price
- $637
- Updated
- 2026/03/19
- Product number
- 5.06071
- Product name
- I-BET
- Purity
- InSolution<tmsymbol></tmsymbol>, ≥98%, 50 mM in DMSO, A cell-permeable benzodiazepine compound
- Packaging
- 5 mg
- Price
- $131
- Updated
- 2026/03/19
- Product number
- 401010
- Product name
- I-BET - CAS 1260907-17-2 - Calbiochem
- Packaging
- 5MG
- Price
- $170
- Updated
- 2026/03/19
- Product number
- 10676
- Product name
- I-BET762
- Purity
- ≥98%
- Packaging
- 1mg
- Price
- $32
- Updated
- 2024/03/01
GSK 525762A Chemical Properties,Usage,Production
Description
The bromodomain and extra terminal domain (BET) family of proteins, including BRD2, BRD3, and BRD4, affect inflammatory gene expression by controlling the assembly of histone acetylation-
Uses
GSK 525762A, is a BET Bromodomain Inhibitor, which is now in clinical development. BET bromodomains have emerged as promising drug targets for treatment of cancers, inflammatory diseases, and other medical conditions.
Definition
ChEBI: 2-[(4S)-6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]-N-ethylacetamide is a benzodiazepine.
Biochem/physiol Actions
I-BET762 possesses anti-inflammatory property by controlling the pro-inflammatory gene expression. I-BET762 hinders the MYC (proto-oncogene) expression in cellular models. This action of I-BET762 might serve as an effective therapy in treating prostate cancer.
Synthesis
1300019-38-8
75-04-7
1260907-17-2
Example 1: (S)-2-(6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)acetic acid (16.0 g, 40 mmol) was dissolved in THF, N,N-diisopropylethylamine (DIEA, 14 mL, 80 mmol) was added followed by 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate (HATU, 30.4 g, 80 mmol) was added. The reaction mixture was stirred at room temperature for 3 h. Then THF solution of ethylamine (40 mL, 2 M, 80 mmol) was added. Stirring was continued for 48 h. The reaction mixture was concentrated under reduced pressure. The crude product was suspended in water and extracted with dichloromethane (DCM). The organic layer was dried with anhydrous sodium sulfate (Na2SO4), filtered and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography (DCM/MeOH, 95:5) and the resulting solid was recrystallized in acetonitrile (MeCN). Subsequently, the solid was dissolved in DCM and precipitated with diisopropyl ether (1-Pr2O) to afford (S)-2-(6-(4-chlorophenyl)-8-methoxy-1-methyl-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)-N-ethylacetamide (8 g, 47% yield) as a white solid. rf = 0.48 (DCM/MeOH, 90:10). Melting point >140°C (viscosity change).1H NMR (300 MHz, CDCl3) δ 7.53-7.47 (m, 2H), 7.39 (d, J = 8.9 Hz, 1H), 7.37-7.31 (m, 2H), 7.20 (dd, J = 2.9, 8.9 Hz, 1H), 6.86 (d, J = 2.9 Hz, 1H). 6.40 (m, 1H), 4.62 (m, 1H), 3.80 (s, 3H), 3.51 (dd, J = 7.3, 14.1 Hz, 1H), 3.46-3.21 (m, 3H), 2.62 (s, 3H), 1.19 (t, J = 7.3 Hz, 3H). lc/ms: m/z 424 [M(35Cl)+H]+. Retention time 2.33 min.
target
BET
storage
Store at -20°C
Background
I-BET762 is a potent BET bromodomain inhibitor, as well as a downregulator of the critical oncogene, MYC. This small molecule inhibits binding of acetylated histones to BET proteins, disrupting the expression of inflammatory genes in activated macrophages, as well as blocking acute inflammation in mice. Studies have found that I-BET762 suppressed T cell inflammation resulting in upregulated expression of anti-inflammatory gene products, and downregulated expression of several proinflammatory cytokines. I-BET762 has also been shown to induce cell death and suppress cell proliferation in pancreatic ductal adenocarcinoma cells.
References
[1] EDWIGE NICODEME. Suppression of inflammation by a synthetic histone mimic[J]. Nature, 2010, 468 7327: 1119-1123. DOI:10.1038/nature09589
[2] OLIVIER MIRGUET*. Discovery of Epigenetic Regulator I-BET762: Lead Optimization to Afford a Clinical Candidate Inhibitor of the BET Bromodomains[J]. Journal of Medicinal Chemistry, 2013, 56 19: 7501-7515. DOI:10.1021/jm401088k
[3] HOZEFA S BANDUKWALA. Selective inhibition of CD4+ T-cell cytokine production and autoimmunity by BET protein and c-Myc inhibitors.[J]. Proceedings of the National Academy of Sciences of the United States of America, 2012, 109 36: 14532-14537. DOI:10.1073/pnas.1212264109
[4] JAKE E DELMORE. BET bromodomain inhibition as a therapeutic strategy to target c-Myc.[J]. Journal of Chemical Theory and Computation, 2011: 904-917. DOI:10.1016/j.cell.2011.08.017
GSK 525762A Preparation Products And Raw materials
Raw materials
Preparation Products
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