A novel series of 3,5-diaminoindazoles were prepared and found to be CDK inhibitors. Potent inhibitors against CDK1 and CDK2 were obtained by introduction of 1λ6-isothiazolidine-1,1-dioxide at 5-position of indazole. Anti-proliferative activities of compounds were evaluated using EJ, HCT116, SW620, and A549 cancer cell lines.
Jinho Lee et al. (2008). Synthesis and biological evaluation of 3,5-diaminoindazoles as cyclin-dependent kinase inhibitors. Bioorganic & Medicinal Chemistry Letters, 18(7), 2292–2295. doi: 10.1016/j.bmcl.2008.03.002