Chemical research on the fungus Bipolaris sp. led to the identification of seven ent-kaurane diterpenoids, kaurepenoids A-G (1-7), marking the first isolation of such diterpenoids from this genus. Kaurepenoids A-F (1-6) represent the first 2-nor-ent-kaurane diterpenoids with a fused 5/6/6/5 tetracyclic ring system. Kau...
Yong Shen, Nan-Jin Ding, Mei-Jia Zheng et al.· Chinese Journal of Natural M...· 0 citations
A new sesquiterpenoid and three other unusual compounds (1-4) along with four known compounds (5-8) were isolated and identified from the fungus Xylaria hypoxylon. Structures of compounds 1-4 with absolute configurations were elucidated by extensive NMR spectral analyses, X-ray crystallography, experimental ECD spectra...
P. Zhou, Zhen-Tong Ni, Jin-Yan Cai et al.· Fitoterapia· 0 citations
Nine previously undescribed prenylated xanthones, aspxanthones A-I (1-9), were isolated and characterized from the endophytic fungus Aspergillus sp. TJ507. Their structures were established through comprehensive spectroscopic analyses, single-crystal X-ray diffraction, and DP4+ probability analysis. Compounds 1, 2, and...
Xueqi Lan, Dong-Chun Liang, Li Tang et al.· Bioorganic chemistry (Print)· 0 citations
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