The Pictet-Spengler Reaction on L-Histidine. Preparation of Conformationally Restricted (+)-Pilocarpine Analogs.
作者:M. del Mar Sánchez-Sánchez、L. M. Tel-Alberdi、M. Jesus Rioseras、M. del Rosario Rico-Ferreira、F. Bermejo-González
DOI:10.1246/bcsj.66.191
日期:——
The total regioselective synthesis of the rigid (+)-pilocarpine analogs 4—6 starting from L-histidine is described. The Pictet-Spengler condensation is used to prepare the tetrahydroimidazopyridine moiety present in the structure of these tricyclic derivatives.