Improved Synthesis of the Selective Rho-Kinase Inhibitor 6-Chloro-<i>N</i>4-{3,5-difluoro-4-[(3-methyl-1<i>H</i>-pyrrolo[2,3-<i>b</i>]pyridin-4-yl)oxy]phenyl}pyrimidin-2,4-diamine
作者:Hartmut Schirok、Holger Paulsen、Walter Kroh、Gang Chen、Ping Gao
DOI:10.1021/op900260k
日期:2010.1.15
A highly potent and selective Rho-kinase inhibitor containing a 7-azaindole moiety has been developed at Bayer Schering Pharma. Herein we disclose details of a significantly improved synthesis of the compound in 8.2% overall yield. Key aspects include cost and safety considerations and the uncommon use of a trifluoromethyl group with controllable reactivity as a masked methyl group.