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Updated: Mar 3, 2026

Preparation of Enantiopure Non-Activated Aziridines and Synthesis of Biemamide B, D, and epiallo-Isomuscarine
Published on: June 13, 2022
Total Synthesis of (-)-Angiopterlactone B
Marie I Thomson1, Gary S Nichol1, Andrew L Lawrence1
1EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K.
Abstract:
An enantioselective total synthesis of (-)-angiopterlactone B has been accomplished in four steps. The synthesis features a proposed biomimetic domino ring-contraction/oxa-Michael/Michael dimerization sequence, forming three new bonds, two new rings, and three new contiguous stereogenic centers in a single step. It has been determined that the originally proposed absolute configuration of natural (+)-angiopterlactone B needs revision. This reveals that angiopteroside, a known glycoside natural product, is the likely biosynthetic precursor to (+)-angiopterlactone B.
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