作者:Debendra K Mohapatra、Barla Thirupathi、Pragna P Das、Jhillu S Yadav
DOI:10.3762/bjoc.7.6
日期:——
The synthesis of (4R,5R)-streptopyrrolidine (1), (4S,5R)-streptopyrrolidine (2) (4R,5S)-streptopyrrolidine (3) and (4S,5S)-streptopyrrolidine (4) have been achieved in a concise and highly efficient manner via a highly stereoselective aldol type reaction with the trimethylsilyl enolate of ethyl acetate and Lewis acid mediated lactamization as the key reactions in approximately 42% yield over six steps
(4R,5R)-链吡咯烷 (1)、(4S,5R)-链吡咯烷 (2) (4R,5S)-链吡咯烷 (3) 和 (4S,5S)-链吡咯烷 (4) 的合成已在通过高度立体选择性的羟醛型反应,以乙酸乙酯的三甲基甲硅烷基烯醇化物和路易斯酸介导的内酰胺化作为关键反应,以分别从 D-苯丙氨酸和 L-苯丙氨酸开始的六个步骤以大约 42% 的产率得到简洁高效的方式。通过将其光谱和分析数据与报告值进行比较,表明天然产物的绝对构型为 (4S,5S)。