Indonesian Journal of Chemistry (Jun 2010)
CONFORMATIONAL STUDIES OF LIGNANS FROM <i>Durio oxleyanus</i> Griff. (<i.Bombacaceae</i>)
Abstract
Searching for secondary metabolites from the wood bark of Durio oxleyanus has afforded two new lignans, namely threo-carolignan Y (1) and erythro-carolignan Y (2) together with three other known lignans erythro-carolignan X (3), boehmenan X (4) and boehmenan (5). The relative configurations of compounds 1 and 2 were established by J-based configurational analysis and 2D NOESY studies. Keywords: carolignan, threo, erythro, Durio, Bombacaceae