constituents of the fungi daedalea quercina and daedaleopsis confragosa var. tricolor. | phytochemical examination of solvent extracts of the wood-rotting fungi daedalea quercina and daedaleopsis confragosa var. tricolor led to the isolation of five new triterpene derivatives and some known fungal constituents. all structures were identified by one- and two-dimensional nmr spectroscopy and mass spectrometry. from daedalea quercina, the new natural products 16-o-acetylpolyporenic acid c, 16alpha-acetoxy-24-methylene-3-oxolanost-8-en-21-oic acid, (+)-24-methylene-3,23-dioxolanost-8-en ... | 2000 | 11014261 |