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Four new sesterterpenoids, terretonins A-D (1-4), and a new alkaloid, asterrelenin (5), together with five known compounds, were isolated from the ethyl acetate extract of a solid-state fermented culture of Aspergillus terreus. Their structures were elucidated on the basis of spectroscopic analysis. The structures of 1, 2, and 5 were confirmed by X-ray… (More)
Three new epipolythiodioxopiperazines, chaetocochins A (1), B (2), and C (3), along with dethio-tetra (methylthio) chetomin (4) and chetomin (5), were isolated from the ethyl acetate extract of the solid-state fermented rice culture of the fungus Chaetomium cochliodes. Their structures were elucidated on the basis of spectroscopic analysis. Compounds 1, 3,… (More)
[structure: see text] Chaetoindicins A-C (1-3), three isoquinolines with novel skeletons, were isolated from the solid-state fermented culture of Chaetomiumindicum. Their structures were elucidated on the basis of spectral data. X-ray crystallographic analysis confirmed the structure of 2.