作者:Yoshiro Hirai、Takashi Terada、Yoshiko Amemiya、Takefumi Momose
DOI:10.1016/s0040-4039(00)74771-x
日期:1992.12
A highly stereoselective synthesis of (-)-bulgecinine (1) via the pyrrolido[1,2-c]oxazolidin-3-one system (2) has been achieved by starting with the asymmetric epoxidation of the twin allyl alcohol system (6). The transformation of note includes the palladium-catalyzed N→π cyclization leading exclusively to a trans-2,5-disubstituted pyrrolidine.
( - ) -的高度立体选择性合成bulgecinine(1)经由所述pyrrolido [1,2 Ç ]恶唑烷-3-一个系统(2)已通过与双烯丙醇系统的不对称环氧化原料(实现6) 。note的转换包括钯催化的N →π环化,仅导致反式-2,5-二取代的吡咯烷。