Chinese bittersweet alkaloid III, a new compound from Celastrus angulatus.

Abstract A novel skeleton alkaloid named Chinese Bittersweet Alkaloid III from the leaves of C. angulatus was reported. The structure and its stereochemistry were established by IR, 1D and 2DNMR (1H-1HCOSY, HMQC, HMBC, NOESY), MS and elemental analysis.