An enantiospecific synthesis of (+)-retronecine and related alkaloids
Abstract
Carbohydrate precursors have been converted enantiospecifically into (1R,5R)-6-aza-2-oxabicyclo [3.3.0]octan-3-one hydrochloride (2), a precursor of (+)-retronecine (1) and related pyrrolizidines.