作者:Lukas J. Goossen、Bettina Melzer
DOI:10.1021/jo701391q
日期:2007.9.1
An efficient synthesis of the angiotensin II inhibitor valsartan (Diovan) is presented. Two routes were evaluated, both making use of an advanced version of our decarboxylative coupling for the construction of the biaryl moiety. Thus, in the presence of a catalyst system consisting of copper(II) oxide, 1,10-phenanthroline, and palladium(II) bromide, 2-cyanocarboxylic acid was coupled with 1-bromo(
提出了血管紧张素II抑制剂缬沙坦(Diovan)的有效合成。评估了两种途径,均利用我们的脱羧偶联的先进形式来构建联芳基部分。因此,在由氧化铜(II),1,10-菲咯啉和溴化钯(II)组成的催化剂体系的存在下,将2-氰基羧酸与1-溴(4-二甲氧基甲基)苯偶联,产率为80%。和4-溴甲苯,产率为71%。使用1-溴(4-二甲氧基甲基)苯进行的缬沙坦合成通过四个步骤完成,总收率达39%,这是一条新颖的途径,与文献报道的方法相比,它具有更为经济和生态上的优势,因为该方法更为简洁和化学计量避免了使用昂贵的有机金属试剂。