作者:Sang Gyeong Lee、Yong-Jin Yoon、Ki Hun Park
DOI:10.1002/jhet.5570350334
日期:1998.5
A short and simple synthetic route to polyhydroxylated piperidines and pyrrolidines were described with D-glucurono-δ-lactone as chiral educt. Key reaction steps included selective cleavage of terminal isopropylidene group of compound 12 with Dowex 50W-X8 resin (H+ form), regioselective ring opening of epoxide 16 and intramolecular nucleophilic amination of compound 14 and 18.
描述了以D-葡糖醛酸-δ-内酯作为手性离析物的多羟基化哌啶和吡咯烷的短而简单的合成途径。关键的反应步骤包括用Dowex 50W-X8树脂(H +形式)选择性裂解化合物12的末端异亚丙基,环氧化物16的区域选择性开环,以及化合物14和18的分子内亲核胺化。