Document Report Card

ID: ALA1145748

Journal: J Med Chem

Title: Nonpeptide alphavbeta3 antagonists. 8. In vitro and in vivo evaluation of a potent alphavbeta3 antagonist for the prevention and treatment of osteoporosis.

Authors: Hutchinson JH, Halczenko W, Brashear KM, Breslin MJ, Coleman PJ, Duong LT, Fernandez-Metzler C, Gentile MA, Fisher JE, Hartman GD, Huff JR, Kimmel DB, Leu CT, Meissner RS, Merkle K, Nagy R, Pennypacker B, Perkins JJ, Prueksaritanont T, Rodan GA, Varga SL, Wesolowski GA, Zartman AE, Rodan SB, Duggan ME.

Abstract: 3(S)-(6-methoxypyridin-3-yl)-3-[2-oxo-3-[3-(5,6,7,8-tetrahydro-[1,8]-naphthyridin-2-yl)propyl]imidazolidin-1-yl]propionic acid 6 was identified as a potent and selective antagonist of the alpha(v)beta(3) receptor. This compound has an excellent in vitro profile (IC(50) = 0.08 nM), a significant unbound fraction in human plasma (12%), and good pharmacokinetics in rat, dog, and rhesus monkey. On the basis of the efficacy shown in three in vivo models of bone turnover, the compound was selected for clinical development. To support the ongoing metabolism and safety studies, a novel strategy was employed in which a series of oxidized derivatives of 6 were prepared by exposure of 6 (or the methyl ester) to chemical oxidizing agents. These products proved useful in the identification of active metabolites generated by either in vitro or in vivo metabolism.

CiteXplore: 14561098

DOI: 10.1021/jm030306r