Rearrangement of thiazolidine derivatives – a synthesis of a chiral fused oxathiane–γ-lactam bicyclic system†
Abstract
Reaction of L-cysteine with carbonyl compounds leads to thiazolidine derivatives which undergo a stereoselective conversion to two types of chiral bicyclic products bearing two or three stereogenic centers, including the first fused oxathiane–γ-lactam system.