作者:Gideon Shapiro、Dieter Buechler、Sylvie Hennet
DOI:10.1016/s0040-4039(00)97944-9
日期:1990.1
An efficient EPC-synthesis of muscarine and muscarone analogs has been devised with 2,S-ethyl lactate as the chiral starting material from which the key intermediate, phosphonate 5, was derived. The piperidine muscarine analog 3, (2S,3R)-1-oxa-2,8-dimethyl-3-oxo-8-azaspiro[4.5]decane, was prepared from 5 in seven steps in 22% overall yield.
已经设计了一种有效的EPC合成毒蕈碱和毒蕈碱类似物,其中乳酸2- S-乙酯为手性原料,衍生出关键的中间体膦酸酯5。哌啶毒蕈碱类似物3,(2 S,3 R)-1-oxa-2,8-二甲基-3-oxo-8-azaspiro [4.5]癸烷是由5步分七个步骤制备的,总产率为22%。