The enantioselective synthesis of poison-frog alkaloids (−)-203A, (−)-209B, (−)-231C, (−)-233D, and (−)-235B″
作者:Naoki Toyooka、Zhou Dejun、Hideo Nemoto、H. Martin Garraffo、Thomas F. Spande、John W. Daly
DOI:10.1016/j.tetlet.2005.11.047
日期:2006.1
The enantioselective synthesis of indolizidines (−)-203A, (−)-209B, (−)-231C, (−)-233D, and (−)-235B″ has been achieved and the absolute stereochemistry of both indolizidines 203A and 233D was established as 5S,8R,9S. The relative stereochemistry of natural 231C was established by the present asymmetric synthesis.
indolizidines的对映选择性合成( - ) - 203A,( - ) - 209B,( - ) - 231C,( - ) - 233D,和( - ) - 235B “已经达到,这两种indolizidines的绝对立体化学203A和233D为确立为5小号,8 - [R 9小号。天然231C的相对立体化学是通过本发明的不对称合成建立的。