Synthesis of novel 5-hydroxy-3-alkoxy- and 5-hydroxy-3-alkylthioindole-2-carboxamides
作者:Paul C. Unangst、David T. Connor、Steven R. Miller
DOI:10.1002/jhet.5570330614
日期:1996.11
The preparation of several novel 5-hydroxyindole-2-carboxamides is described. A 5-benzyloxyindole ester was elaborated to the 3-bromo, 3-hydroxy, and 3-alkoxy ester intermediates followed by conversion to the amide and debenzylation. A related 5-acetyloxy indole ester was converted to 3-sulfinyl and 3-alkylthio intermediates before simultaneous amidation and removal of the 5-hydroxy protecting group
描述了几种新颖的5-羟基吲哚-2-羧酰胺的制备。将5-苄氧基吲哚酯修饰为3-溴,3-羟基和3-烷氧基酯中间体,然后转化为酰胺并进行脱苄基作用。在同时酰胺化和除去5-羟基保护基之前,将相关的5-乙酰氧基吲哚酯转化为3-亚磺酰基和3-烷硫基中间体。