Abstract
Three new drimane-type sesquiterpenoids chaetothyrins A–C (1–3), were isolated from an endolichenic fungus Chaetothyriales sp. (4341B). Their structures were determined by analysis of MS and NMR data as well as single-crystal X-ray diffraction analysis.
Acknowledgments
We thank Mr Hong-Bo Zheng for the NMR measurements and Mrs. Yan-Hui Gao for the HRESIMS determination.