作者:Hong Shu、April R. Noble、Suhong Zhang、Lei Miao、Mark L. Trudell
DOI:10.1016/j.tet.2010.04.037
日期:2010.6
The efficient and expeditious syntheses of both enantiomers of the amphibian alkaloid cis-225H have been achieved. Utilizing a common cis-2,5-disubstituted pyrrolidine building block derived from (+)-2-tropinone, the enantioselective syntheses have established the absolute configuration of these alkaloids as (+)-(2R,5S) and (−)-(5S,2R).
两栖生物碱顺式-225H的两种对映异构体的高效和快速合成已经实现。利用衍生自 (+)-2-tropinone的常见顺式-2,5-二取代吡咯烷结构单元,对映选择性合成已确定这些生物碱的绝对构型为 (+)-(2 R ,5 S ) 和 (-) -(5 S ,2 R )。