Abstract:
Diastereoselective and diverse synthesis of polyhydroxylated indolizidines and piperidines have been described, where a common chiral intermediate 2-(hydroxymethyl) piperidine-3-ol is converted into (-)-Swainsonine, (+)-1,2-Di-epi-swainsonine, (+)-8,8a-Di-epi-castanospermine, Pentahydroxy Indolizidines, (-)-1-Deoxynojirimycin, (-)-1-Deoxy-altro-nojirimycin and related diversity. The key steps were hydroxy directed intramolecular aminomercuration, Mitsunobu cyclisation and diastereoselective dihydroxylation. © 2014 Elsevier Science. All rights reserved