Regioselective synthesis of 3-aryl-5-(1H-indole-3-carbonyl)-4-hydroxyfuroic acids as potential insulin receptor activators
作者:Shan-Yen Chou、Shieh-Shung Tom Chen、Ching-Hui Chen、Lien-Shange Chang
DOI:10.1016/j.tetlet.2006.08.076
日期:2006.10
5-dicarboxylic acid (8) is selectively converted into its C-5 methylester (6) by treatment with methyl chloroformate followed by decarboxylation in one flask. Acylation of the resulting half ester with a 7-substituted indole was performed under mild conditions to afford 3-aryl-5-(1H-indole-3-carbonyl)-4-methoxy-2-furoic acid (11). The synthetic utility of the resulting furoic acids as a skeleton in
通过用氯甲酸甲酯处理然后在一个烧瓶中脱羧,将3-甲氧基-4-芳基-呋喃-2,5-二羧酸(8)选择性地转化为其C-5甲酯(6)。在温和的条件下用7-取代的吲哚酰化所得的半酯,得到3-芳基-5-(1H-吲哚-3-羰基)-4-甲氧基-2-糠酸(11)。建立了所得糠酸作为潜在胰岛素受体激活剂合成中的骨架的合成效用。