An Enantioselective Entry to <i>cis</i>-Perhydroisoquinolines
作者:Mercedes Amat、Maria Pérez、Annamaria T. Minaglia、Núria Casamitjana、Joan Bosch
DOI:10.1021/ol051242c
日期:2005.8.1
[GRAPHICS]An enantioselective route to cis-perhydroisoquinolines, involving a cycloconclensation reaction of (R)-phenylglycinol with a racemic oxoester, a stereoselective conjugate addition to an unsaturated bicyclic lactam, and the closure of the carbocyclic ring by a ring-closing metathesis as the key steps is reported. This route allows the preparation of 3-cyano derivatives as well as cis-octahydroisoquinolines bearing a quaternary center at the N-position.