作者:Yoshihiro Matsumura、Mayumi Inoue、Yasuharu Nakamura、Idi Ludwig Talib、Toshihide Maki、Osamu Onomura
DOI:10.1016/s0040-4039(00)00675-4
日期:2000.6
oxypiperidine (4), prepared from l-lysine by using electrochemical oxidation, was cyclopropanated with high diastereoselectivity (96.6% de), and the cyclopropanated product was transformed to optically active 2,3-methanopipecolic acid (1). In this transformation, the 6-methoxy group of 4 was found to be an effective chiral auxiliary.
由1-赖氨酸通过电化学氧化制得的2,3-二氢-1,2-双(甲氧基羰基)-6-甲氧基哌啶(4)以高非对映选择性(96.6%de)进行环丙烷化,并将环丙烷化产物转化为旋光的2,3-甲基戊酸(1)。在该转化中,发现4的6-甲氧基是有效的手性助剂。