Total synthesis of (−)-swainsonine, an α-d-mannosidase inhibitor isolated from Swainsona canescens
作者:Tetsuo Suami、Kin-ichi Tadano、Youichi Iimura
DOI:10.1016/0008-6215(85)85186-7
日期:1985.2
Abstract A newly isolated alkaloidal toxin, (−)-swainsonine [(1 S ,2 R ,8 R ,8a R )-1,2,8-trihydroxyoctahydroindolizine], which exhibits an α- d -mannosidase inhibitory activity, has been synthesised stereoselectively in 15 steps starting from methyl 3-acetamido-2,4,6-tri- O -acetyl-3-deoxy-α- d -mannopyranoside.
摘要合成了一种新的分离出的生物碱毒素(-)-swainsonine [(1 S,2 R,8 R,8a R)-1,2,8-三羟基八氢吲哚嗪],具有α-d-甘露糖苷酶抑制活性。以15个步骤立体选择性地从3-乙酰氨基-2,4,6-三-O-乙酰基-3-脱氧-α-d-甘露吡喃糖苷甲基开始。