Neolignans From Mezilaurus Itauba
Resumen del Libro
The wood bark of Mezilaurus itauba afforded in addition to seven neolignans, three new compounds rel- (7R,8R,1S,3S) delta5,8-5-methoxy-3,4-methylenedioxy-1,2,3,4-tetrahydro-2,4 dioxo-7.3,8.1 neolignan, rel- (7S,8S,1S,2S,3R,4S) delta8-2,4 dihydroxy-3,4-methylenedioxy-1,2,3,4,5,6-hexahydro-5-oxo-7.3,8.1 neolignan and rel- (7S,8S) delta8-6-hydroxy-5-methoxy-3,4-methylenedioxy-7.O.2,8.3 neolignan. The latter compound has been detected previously in Aniba termitalis. The structures were elucidated by spectroscopic methods and comparison with related compounds.
