Synthesis of tetrahydrolipstatin and tetrahydroesterastin, compounds with a .beta.-lactone moiety. Stereoselective hydrogenation of a .beta.-keto .delta.-lactone and conversion of the .delta.-lactone into a .beta.-lactone
Synthesis of tetrahydrolipstatin and tetrahydroesterastin, compounds with a .beta.-lactone moiety. Stereoselective hydrogenation of a .beta.-keto .delta.-lactone and conversion of the .delta.-lactone into a .beta.-lactone