The synthesis of hydroxy-pyrrolizidines and indolizidines from cyclopropenones: towards hyacinthacines, australines and jenamidines
作者:Vishnu V.R. Kondakal、M. Ilyas Qamar、Karl Hemming
DOI:10.1016/j.tetlet.2012.05.117
日期:2012.8
pyrrolizidines and indolizidines, respectively, each with a hydroxy group on the carbon atom at the bridgehead. The cyclopropenone functions as an all-carbon 1,3-dipole equivalent towards the cyclic imine in this reaction, and the cyclic imines used include polyhydroxylated systems, thus allowing access to australine, alexine and hyacinthacine type compounds. The pyrrolizidine products contain the core of the
环状亚胺(1-吡咯啉和哌啶)与环丙烯酮的反应分别导致吡咯烷核苷和吲哚并核苷,它们各自在桥头处的碳原子上具有羟基。在该反应中,环丙烯酮起着对环亚胺的全碳1,3-偶极当量的作用,并且所用的环亚胺包括多羟基化体系,因此可以使用奥曲林,亚历克辛和风信子型化合物。吡咯并idine啶产品包含啶和波希米胺天然产品的核心,它们作为细胞增殖抑制剂和细胞间黏附抑制剂受到关注。