作者:James C. Shattuck、Cheney M. Shreve、Sandra E. Solomon
DOI:10.1021/ol0164482
日期:2001.9.1
Both enantiomers of imperanene, a platelet aggregation inhibitor, have been synthesized in 82-90% ee. The key step of establishing the chiral center was achieved through stereoselective alkylation with benzyl chloromethyl ether using Enders' RAMP/SAMP chiral auxiliary method. The natural product was determined to be the (S)-enantiomer through comparison of optical rotation data. Reaction: see text
戊二烯(一种血小板聚集抑制剂)的两种对映体均以82-90%ee的比例合成。建立手性中心的关键步骤是通过使用Enders的RAMP / SAMP手性辅助方法与苄基氯甲基醚进行立体选择性烷基化来实现的。通过旋光度数据的比较确定天然产物为(S)-对映体。反应:见文字。