Enantiocontrolled synthesis of (+)-aphanorphine from (R)-O-benzylglycidol: assignment of absolute configuration
Abstract
Aphanorphine, a novel 3-benzazepine alkaloid isolated from the freshwater blue–green alga Aphanizomenon flos-aquae, has been synthesized in the antipodal forms starting from (R)-O-benzylglycidol to establish the absolute configuration of the natural product as (1R, 4R).