Vinylogous urethanes in alkaloid synthesis: formal syntheses of Elaeocarpus alkaloids
作者:Arthur S. Howard、Graeme C. Gerrans、Clive A. Meerholz
DOI:10.1016/s0040-4039(00)74580-1
日期:1980.1
dehydroindolizidine has been prepared from the exocyclic vinylogous urethane via an acylative ring closure. The specific formation of the enolate required for further elaboration to Elaeocarpus alkaloid precursors has been achieved by making use of the vinylogous amide .
取代的脱氢吲哚并咪唑已经由环外乙烯基氨基甲酸酯通过酰基闭环制备。通过使用乙烯类酰胺,可以实现进一步细化到Elaeocarpus生物碱前体所需的烯醇化物的特定形成。