作者:Gottfried Schill、Hartmut Löwer、Claus Ulrich Priester、Udo Frank Windhövel、Hans Fritz
DOI:10.1016/s0040-4020(01)86861-7
日期:1987.1
Starting from vindoline () and 7-methoxycarbonylazoninoindole derivatives , a new concept for the synthesis of vinblastine type alkaloids with natural C(16') stereochemistry is described. Using lactam and chloroindolenine as key intermediatea a stereocontrolled coupling between the dihydroindole and indole subunits under formation of should be achieved. Methanolysis of and intramolecular No-alkylation
从vindoline()和7-甲氧基羰基氮杂吲哚衍生物开始,描述了具有天然C(16')立体化学的长春碱类生物碱合成的新概念。用内酰胺和氯吲哚烯作为主要中间体,应在形成的二氢吲哚和吲哚亚基之间实现立体控制的偶联。所得的甲醇解和分子内的否烷基化反应应导致产生20 deethyl-20'-deoxyvinblastine 。内酰胺合成的模型研究被描述。提出了一种新的方法,以α-羟烷基取代的衍生物为原料,将腈基引入2-烷基吲哚的α-位。