作者:Larry D. Bratton、Bruce D. Roth、Bharat K. Trivedi、Paul C. Unangst
DOI:10.1002/jhet.5570370513
日期:2000.9
elaborated to the 3-benzhydryl ester, N-substituted ester, and carboxylic acid intermedi ates, followed by conversion to the amide and then reduction of the 5-nitro group to the amine. Indole-2-carboxamides with 3-benzyl and 3-phenyl substituents were prepared in four steps from either a 3-bromo indole ester using the Suzuki reaction or from a 3-keto substituted indole ester. N-Alkylation of ethyl indole-2-carboxylate
描述了几种新颖的3,5-取代的吲哚-2-羧酰胺的制备。将5-硝基吲哚-2-羧酸酯加工成3-苯甲酰基酯,N-取代的酯和羧酸中间体,然后转化成酰胺,然后将5-硝基还原成胺。用Suzuki反应,由3-溴吲哚酯或由3-酮取代的吲哚酯分四个步骤制备具有3-苄基和3-苯基取代基的吲哚-2-甲酰胺。吲哚-2-羧酸乙酯的N-烷基化,然后酰胺化和催化加入9-羟基x吨,得到3-黄嘌呤-吲哚-2-羧酰胺类似物和螺吡咯并吲哚作为副产物。