a State Key Laboratory of Phytochemistry, Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; b Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science, Technology, Yunnan University, Kunming 650091, China
Abstract Four new bisabolane sesquiterpenoids daedatrins A-D (1-4), a cadinane sesquiterpene 12-hydroxy-α-cadinol (5), a heptanorergosterane derivative daedatrin G (6) were isolated from cultures of the basidiomycete Daedaleopsis tricolor. Their structures were elucidated by spectroscopic methods including extensive 2D NMR techniques, X-ray crystallography. All the compounds showed no significant activity against five human cancer cell lines.
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