Novel and practical asymmetric synthesis of an azetidine alkaloid, penaresidin B

A novel and efficient asymmetric synthesis of the potent actomyosin ATPase activator, penaresidin B, is described in a short and complete stereoselective manner by featuring the elaboration of the fully functionalized homochiral lactam, which can also be regarded as an advanced intermediate for the synthesis of other azetidine alkaloids.