BAZ2-ICR

• CAT Number: I004082
• CAS Number: 1665195-94-7
• Molecular Formula: C20H19N7
• Molecular Weight: 357.41
• Purity: ≥95%
• Synonyms: 4-[5-(1-methylpyrazol-4-yl)-3-[2-(1-methylpyrazol-4-yl)ethyl]imidazol-4-yl]benzonitrile
• InChI: InChI=1S/C20H19N7/c1-25-12-16(10-23-25)7-8-27-14-22-19(18-11-24-26(2)13-18)20(27)17-5-3-15(9-21)4-6-17/h3-6,10-14H,7-8H2,1-2H3
• InChIKey: RRZVGDGTWNQAPW-UHFFFAOYSA-N
• SMILES: CN1C=C(C=N1)CCN2C=NC(=C2C3=CC=C(C=C3)C#N)C4=CN(N=C4)C

BAZ2-ICR is a potent, selective, cell active and orally active BAZ2A/B bromodomains inhibitor with IC50s of 130 nM and 180 nM, and Kds of 109 nM and 170 nM, respectively. BAZ2-ICR shows 10-15-fold selectivity for binding BAZ2A/B over CECR2 and >100-fold selectivity over all other bromodomains. BAZ2-ICR is an epigenetic chemical probe[1].
To investigate whether BAZ2-ICR (Compound 13) can displace BAZ2 bromodomains from chromatin in living cells, a fluorescence recovery after photobleaching (FRAP) assay utilizing GFP-tagged BAZ2A full length protein transfected into human osteosarcoma cells (U2OS) are tested. 1 μM BAZ2-ICR reduces the recovery time of the wild-type (wt) construct to a level similar to the dominant negative mutant, confirming that BAZ2-ICR inhibits BAZ2A in cells[1].
BAZ2-ICR (Compound 13) shows very high solubility (25 mM in D2O), a measured log D of 1.05, high stability in mouse microsomes, and permeation in the CaCo-2 model and thus a suitable profile for oral and intravenous gavage. BAZ2-ICR (5 mg/kg) shows 70% bioavailability and moderate clearance (∼50% of mouse liver blood flow) and volume of distribution[1].

Reference

[1]. Drouin L, et al. Structure enabled design of BAZ2-ICR, a chemical probe targeting the bromodomains of BAZ2A and BAZ2B. J Med Chem. 2015 Mar 12;58(5):2553-9.
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