JQ1

JQ1
Identifiers
  • (S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f] [1,2,4]triazolo[4,3-a] [1,4]diazepin-6-yl)acetate
CAS Number
PubChem CID
IUPHAR/BPS
ChemSpider
UNII
ChEBI
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC23H25ClN4O2S
Molar mass456.99 g·mol−1
3D model (JSmol)
  • O=C(C[C@H]1C2=NN=C(N2C3=C(C(C4=CC=C(C=C4)Cl)=N1)C(C)=C(S3)C)C)OC(C)(C)C
  • InChI=1S/C23H25ClN4O2S/c1-12-13(2)31-22-19(12)20(15-7-9-16(24)10-8-15)25-17(11-18(29)30-23(4,5)6)21-27-26-14(3)28(21)22/h7-10,17H,11H2,1-6H3/t17-/m0/s1
  • Key:DNVXATUJJDPFDM-KRWDZBQOSA-N

JQ1 is a thienotriazolodiazepine and a potent inhibitor of the BET family of bromodomain proteins which include BRD2, BRD3, BRD4, and the testis-specific protein BRDT in mammals. BET inhibitors structurally similar to JQ1 are being tested in clinical trials for a variety of cancers including NUT midline carcinoma.[1] It was developed by the James Bradner laboratory at Brigham and Women's Hospital and named after chemist Jun Qi. The chemical structure was inspired by patent of similar BET inhibitors by Mitsubishi Tanabe Pharma.[2] Structurally it is related to benzodiazepines. While widely used in laboratory applications, JQ1 is not itself being used in human clinical trials because it has a short half life.

  1. ^ "Studies found for: bet inhibitor". ClinicalTrials.Gov. National Library of Medicine, National Institutes of Health, U.S. Department of Health and Human Services.
  2. ^ WO/2009/084693