作者:Yuelie Lu、Tingjian Xiang、Michael D. Bartberger、Charles Bernard、Tracy Bostick、Liang Huang、Longbin Liu、Aaron Siegmund、Gregory Sukay、Gary Guo、Maria Silva Elipe、Wanda Tormos、Celia Dominguez、Kevin Koch、Laurence E. Burgess、Thomas C. Basil、Prabha Ibrahim、Conrad Hummel
DOI:10.1016/j.tet.2006.09.047
日期:2006.12
A concise, scaleable synthesis of building block 10 for p38 kinase inhibitor B is described. The key step is the one-pot construction of 5-aryl-3-methyl-2-methylsulfanyl-6-pyridin-4-yl-3H-pyrimidin-4-one 4 from arylacetic acid ethyl ester 1. Subsequent hydrolysis of the thiomethyl group to the hydroxy group and chlorination provided the key intermediate, 2-chloro-3-methyl-6-pyridin-4-yl-5-aryl-3H-pyrimidin-4-one
描述了p38激酶抑制剂B的结构单元10的简明,可缩放的合成。关键步骤是从芳基丙烯酸乙酯1中一锅构建5-芳基-3-甲基-2-甲基硫烷基-6-吡啶-4-基-3 H-嘧啶-4-酮4。随后的硫代甲基水解为羟基和氯化提供了关键的中间体,2-氯-3-甲基-6-吡啶-4-基-5-芳基-3 H-嘧啶-4-酮10。在p38 MAP激酶抑制剂的SAR研究中,这类反应性构建基块能够快速评估嘧啶酮2位上的各种侧链。