A Strategy to Minimize Reactive Metabolite Formation: Discovery of (<i>S</i>)-4-(1-Cyclopropyl-2-methoxyethyl)-6-[6-(difluoromethoxy)-2,5-dimethylpyridin-3-ylamino]-5-oxo-4,5-dihydropyrazine-2-carbonitrile as a Potent, Orally Bioavailable Corticotropin-Releasing Factor-1 Receptor Antagonist
作者:Richard A. Hartz、Vijay T. Ahuja、Xiaoliang Zhuo、Ronald J. Mattson、Derek J. Denhart、Jeffrey A. Deskus、Vivekananda M. Vrudhula、Senliang Pan、Jonathan L. Ditta、Yue-Zhong Shu、James E. Grace、Kimberley A. Lentz、Snjezana Lelas、Yu-Wen Li、Thaddeus F. Molski、Subramaniam Krishnananthan、Henry Wong、Jingfang Qian-Cutrone、Richard Schartman、Rex Denton、Nicholas J. Lodge、Robert Zaczek、John E. Macor、Joanne J. Bronson
DOI:10.1021/jm900716v
日期:2009.12.10
6-(difluoromethoxy)-2,5-dimethylpyridin-3-amine group in 19e contributed to the potency and improved in vivo properties of this compound and related analogues. 19e had excellent pharmacokinetic properties in rats and dogs and showed efficacy in the defensive withdrawal model of anxiety in rats. The lowest efficacious dose was 1.8 mg/kg. The results of a two-week rat safety study with 19e indicated that this compound