The stereoselective formal synthesis of (+)-isolaurepinnacin is described. The required key oxepene skeleton possessing cis-oriented alkyl substituents at the alpha,omega -positions was stereoselectively constructed via the cyclization of the corresponding hydroxy epoxide promoted by the (Bu3Sn)(2)O/Zn(OTf)(2) system. (C) 2000 Elsevier Science Ltd. All rights reserved.
The stereoselective formal synthesis of (+)-isolaurepinnacin is described. The required key oxepene skeleton possessing cis-oriented alkyl substituents at the alpha,omega -positions was stereoselectively constructed via the cyclization of the corresponding hydroxy epoxide promoted by the (Bu3Sn)(2)O/Zn(OTf)(2) system. (C) 2000 Elsevier Science Ltd. All rights reserved.