摘要 : Two oligostilbenes, cis- and trans-diptoindonesin B, have been isolated from the tree bark of Drilobalanops oblong folia (Dipterocarpaceae). The structures and relative configurations of both compounds were determined on the basis... 展开 Two oligostilbenes, cis- and trans-diptoindonesin B, have been isolated from the tree bark of Drilobalanops oblong folia (Dipterocarpaceae). The structures and relative configurations of both compounds were determined on the basis of spectroscopic evidence, including 2D-NMR spectroscopic analysis. 收起