An efficient stereoselective synthesis of Z-(2S)- and Z-(2R)-2-tert-butoxycarbonylamino-6-hydroxyhex-4-enoic acid, key intermediates in the synthesis of (2S,4S,5R)-(−)- and (2R,4R,5S)-(+)-bulgecinine
作者:Karen E. Holt、Jonathan P. Swift、Mark E.B. Smith、Stephen J.C. Taylor、Raymond McCague
DOI:10.1016/s0040-4039(01)02338-3
日期:2002.2
A concise, scaleable route to both isomers of Z-2-tert-butoxycarbonylamino-6-hydroxyhex-4-enoic acid from 2-butyne-1,4-diol, utilizing l- and d-acylase enzymes is presented. These intermediates were readily converted to multigram quantities of N-Boc-(2S,4S,5R)- and N-Boc-(2R,4R,5S)-bulgecinine.
提出了利用1-和d-酰基转移酶从2-丁炔-1,4-二醇到Z -2-叔-丁氧基羰基氨基-6-羟基己基-4-烯酸的两个异构体的简洁,可扩展的途径。这些中间体很容易转化为毫克数的N -Boc-(2 S,4 S,5 R)-和N -Boc-(2 R,4 R,5 S)-bulgecinine。