Lignans related to olivil from genus Cerbera. Cerbera. VI.

Abstract

Three olivil dimers, 5', 5'''-bis-olivil, 5', 5''-bis-olivil, and 5, 5''-bis-olivil, were isolated from the stems of Cerbera manghas and C. odollam together with (-)-olivil and (+)-cycloolivil, and their structures were determind on the basis of spectral evidence. Oilvil 4-O-glucoside and 4'-O-glucoside were also obtained from the leaves of C. manghas.