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BET bromodomain inhibitor

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Catalog No.
Potent and selective inhibitor for BRD4
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10mM (in 1mL DMSO)
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IC50: < 500 nM for BRD4

BET (bromodomain and extra-terminal) proteins regulate gene expression through their ability to bind to acetylated chromatin and subsequently activate RNA PolII-driven transcriptional elongation. The bromodomain (BRD) and extra-C terminal domain (BET) protein family consists of four members (BRD2, BRD3, BRD4 and BRDT).Small molecule BET inhibitors prevent binding of BET proteins to acetylated histones and inhibit transcriptional activation of BET target genes. BET inhibitors attenuate cell growth and survival in several hematologic cancer models, partially through the down-regulation of the critical oncogene, MYC. BET bromodomain inhibitor is a potent and selective inhibitor for BRD4.

In vitro: The most potent systhsized ompound presented is BET bromodomain inhibitor, which shows activity with IC50 < 500 nM against BRD4 [1].

In vivo: BET bromodomain inhibitor shows activity in vivo at < 10 mg/kg against BRD4 in rat [1].

Clinical trial: Up to now, BET bromodomain inhibitor is still in the preclinical development stage.

[1] Garnier JM, Sharp PP, Burns CJ.  BET bromodomain inhibitors: a patent review. Expert Opin Ther Pat. 2014 Feb;24(2):185-99.

Product Citation

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.1380087-89-7
SynonymsCPI-0610; CPI0610; CPI 0610
Solubility≥18.3mg/mL in DMSO
Chemical Name2-(6-(4-chlorophenyl)-1-methyl-4H-benzo[c]isoxazolo[4,5-e]azepin-4-yl)acetamide
SDFDownload SDF
Canonical SMILESCC1=NOC2=C1C3=CC=CC=C3C(C4=CC=C(C=C4)Cl)=NC2CC(N)=O
Shipping ConditionEvaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.


Cell experiment [1]:

Cell lines

Primary Multiple Myeloma cell lines

Preparation method

The solubility of this compound in DMSO is >18.3mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reacting condition

2 μM at 72 h


CPI-0610 treatment resulted in 40% decrease in viability in primary cells isolated from a newly diagnosed patient and caused 50% cell death in primary cells isolated from a relapsed disease patient.

Animal experiment [1]:

Animal models

Multiple Myeloma xenograft CB17-SCID mouse model

Dosage form

subcutaneous injections, 10 mg/kg, twice a day for 38 days


Mice treated with CPI-0610 showed a significant delay in tumor growth, and the median overall survival of CPI-0610 treated animals was significantly prolonged.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.


[1] Siu KT, Ramachandran J, Yee AJ, et al. Preclinical activity of CPI-0610, a novel small-molecule bromodomain and extra-terminal protein inhibitor in the therapy of multiple myeloma. Leukemia. 2017 Jan 3.

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