A new sterol, ergosta-8(9),22-diene-3,5,6,7-tetraol(3β,5α,6β,7α,22E)(A) together with three known sterols: 3β, 5α,6β-trihydroxyergosta-7,22-diene (B), 3β-hydroxy-5α,8α- epidioxyer-gosta-6,22-diene (C) and er...A new sterol, ergosta-8(9),22-diene-3,5,6,7-tetraol(3β,5α,6β,7α,22E)(A) together with three known sterols: 3β, 5α,6β-trihydroxyergosta-7,22-diene (B), 3β-hydroxy-5α,8α- epidioxyer-gosta-6,22-diene (C) and ergosterol (D) were isolated from the mycelia of an unidentified endophytic fungus separated from Castaniopsis fissa (chestnut tree). Compound A exhibited potent selective cytotoxicity against Bel-7402, NCI4460 and L-02 cell lines with IC50 values 8.445, 5.03, 13.621 μg/mL, respectively.展开更多
Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11, which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl) acetamide (1) and ergo...Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11, which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl) acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications. Compound 1 was a new natural product. Compound 2 was firstly isolated from its genus. Spectral data of 1 and complete 1H NMR data of 2 were reported for the first time.展开更多
Five compounds were isolated from mycelia of A.awamori ,and identified as ergosta 5,7,22 trien 3 β ol(Ⅰ),hexadecanoic acid(Ⅱ),ergosta 7,22 diene 3 β,5α,6β triol(Ⅲ), 5α,8α epidioxyergosta 6,22 diene 3 β ol(Ⅳ...Five compounds were isolated from mycelia of A.awamori ,and identified as ergosta 5,7,22 trien 3 β ol(Ⅰ),hexadecanoic acid(Ⅱ),ergosta 7,22 diene 3 β,5α,6β triol(Ⅲ), 5α,8α epidioxyergosta 6,22 diene 3 β ol(Ⅳ)and ergosta 7,22 diene 3,6 dione(Ⅴ)on the basis of spectral data and physical and chemical identification respectively.Among them,compound V was obtained from this genus for the first time.展开更多
文摘A new sterol, ergosta-8(9),22-diene-3,5,6,7-tetraol(3β,5α,6β,7α,22E)(A) together with three known sterols: 3β, 5α,6β-trihydroxyergosta-7,22-diene (B), 3β-hydroxy-5α,8α- epidioxyer-gosta-6,22-diene (C) and ergosterol (D) were isolated from the mycelia of an unidentified endophytic fungus separated from Castaniopsis fissa (chestnut tree). Compound A exhibited potent selective cytotoxicity against Bel-7402, NCI4460 and L-02 cell lines with IC50 values 8.445, 5.03, 13.621 μg/mL, respectively.
基金The present work was supported by Foundation of State Key Basic Research and Development Project (G1998051100)
文摘Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11, which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl) acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications. Compound 1 was a new natural product. Compound 2 was firstly isolated from its genus. Spectral data of 1 and complete 1H NMR data of 2 were reported for the first time.
文摘Five compounds were isolated from mycelia of A.awamori ,and identified as ergosta 5,7,22 trien 3 β ol(Ⅰ),hexadecanoic acid(Ⅱ),ergosta 7,22 diene 3 β,5α,6β triol(Ⅲ), 5α,8α epidioxyergosta 6,22 diene 3 β ol(Ⅳ)and ergosta 7,22 diene 3,6 dione(Ⅴ)on the basis of spectral data and physical and chemical identification respectively.Among them,compound V was obtained from this genus for the first time.
