Document Report Card

ID: ALA1149395

Journal: J Med Chem

Title: Beta-substituted cyclohexanecarboxamide: a nonpeptidic framework for the design of potent inhibitors of cathepsin K.

Authors: Crane SN, Black WC, Palmer JT, Davis DE, Setti E, Robichaud J, Paquet J, Oballa RM, Bayly CI, McKay DJ, Somoza JR, Chauret N, Seto C, Scheigetz J, Wesolowski G, Massé F, Desmarais S, Ouellet M.

Abstract: A new series of nonpeptidic cathepsin K inhibitors that are based on a beta-substituted cyclohexanecarboxamide motif has been developed. Lead optimization yielded compounds with sub-nanomolar potency and exceptional selectivity profiles against cathepsins B, L, and S. Use of fluorine atoms to block metabolism on the cyclohexyl ring led to compounds with excellent pharmacokinetic properties. Considering the well-established role of cathepsin K in osteoclast-mediated bone turnover, compounds such as (-)-34a (hrab Cat K IC(50) 0.28 nM; >800-fold selectivity vs Cat B, L, and S; PK data in dogs: F 55%, t(1/2) = 15 h) exhibit great potential for development as an orally bioavailable therapeutic for treatment of diseases that involve bone loss.

CiteXplore: 16451072

DOI: 10.1021/jm051059p