BIX 02565

• CAT Number: I001193
• CAS Number: 1311367-27-7
• Molecular Formula: C26H30N6O2
• Molecular Weight: 458.56
• Purity: ≥95%
• Synonyms: (5R)-N-[1-[3-(dimethylamino)propyl]benzimidazol-2-yl]-5-methyl-1-oxo-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indole-8-carboxamide
• InChI: InChI=1S/C26H30N6O2/c1-17-11-12-27-25(34)23-15-18-9-10-19(16-22(18)32(17)23)24(33)29-26-28-20-7-4-5-8-21(20)31(26)14-6-13-30(2)3/h4-5,7-10,15-17H,6,11-14H2,1-3H3,(H,27,34)(H,28,29,33)/t17-/m1/s1
• InChIKey: ZHMXXVNQAFCXKK-QGZVFWFLSA-N
• SMILES: CC1CCNC(=O)C2=CC3=C(N12)C=C(C=C3)C(=O)NC4=NC5=CC=CC=C5N4CCCN(C)C

BIX 02565 is a potent ribosomal S6 kinase 2 (RSK2) inhibitor with IC50 of 1.1 nM.
BIX 02565, a potent RSK2 inhibitor (IC50=1.1 nM) targets for the treatment of heart failure secondary to myocardial infarction through indirect NHE inhibition[1]. BIX 02565, a second Rsk inhibitor, protects enzyme active sites from reaction with biotinylated nucleotide acyl phosphates[2].
In telemetry-instrumented rats, BIX 02565 (30, 100, and 300 mg/kg p.o. QD for 4 days) elicits concentration-dependent decreases in MAP after each dose (to -39±4 mm Hg on day 4 at Tmax). BIX 02565 produces concentration-dependent relaxation ex vivo in the phenylephrine-constricted rat aortic ring at concentrations above 0.03 μM with a calculated EC50 of 3.1 μM. Subsequently, BIX 02565 is infused in the anesthetized rat in a low-dose (0.1, 0.3, and 1.0 mg/kg per 20 min) and high-dose (1.0, 3.0, and 10.0 mg/kg per 20 min) series of continuous infusions to test the effect of compound on hemodynamics in vivo[1].

Reference

[1]. Fryer RM, et al. Mitigation of off-target adrenergic binding and effects on cardiovascular function in the discovery of novel ribosomal S6 kinase 2 inhibitors. Journal of Pharmacology and Experimental Therapeutics (2012), 340(3), 492-500.
 [Content Brief]

[2]. Edgar AJ, et al. A combination of SILAC and nucleotide acyl phosphate labelling reveals unexpected targets of the Rsk inhibitor BI-D1870. Biosci Rep. 2013 Dec 17.