Two New Furanoid Norditerpenes from Dioscorea bulbifera.

Chem Pharm Bull (Tokyo). 2009 Jun; 57(6): 625-7Wang G, Liu JS, Lin BB, Wang GK, Liu JKTwo new furanoid norditerpenes (1, 2) were isolated from the root tubers of Dioscorea bulbifera L. Their structures were established on the basis of extensive spectroscopic analysis.