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- W2355276150 abstract "Object To study the chemical constituents of Hypericum sampsonii Hance from Yunnan Province Methods Cytotoxicity screening of extracts from wild and cultivated H sampsonii was carried out by L 1210 cell and KB cell Chemical constituents for wild H sampsonii were isolated by column chromatography The chemical structures were identified by physical and chemical properties and spectral data analysis Results Six compounds have been isolated and established as 1 benzoyl 3 (3 methyl 2 butenyl) 6, 6, 13, 13 tetramethyl 11 geranyl 5 lxatetracycol[7 3 1 0 3, 7 0 4, 11 ] tridecane 2, 12 dione (sampsonione A, Ⅰ); 1 benzoyl 5 (1 hydroxy isopropyl) 6, 6, 13, 13 tetramethyl 11 geranyl tetracycol [7 3 1 1 0 3, 7 ] tetradecane 2, 12, 14 trione (sampsonione F, Ⅱ); 3 (1 hydroxy 5 methyl 4 hexenyl) 6, 10 di (3 methyl 2 butyryl) 8 benzoyl 9, 9 dimethyl 4 oxatricycol [6 3 1 0 1, 5 ] 5 dodecene 7, 12 dione (sampsonione K, Ⅲ); 1,2 dihydro 3, 6, 8 trihydroxy 1, 1 bis (3 methyl but 2 enyl) xanthen 2, 9 dione (patulone, Ⅳ); 1, 7 dihydroxy 4 methoxy xanthone (Ⅴ) and 1, 3, 6, 7 tetrahydroxy 8 (3 methyl but 2 enyl) xanthone (Ⅵ) Conclusion Compounds Ⅳ-Ⅵ are first obtained from H sampsonii In addition, the fractions of chloroform extracting and ethyl acetate extracting possess anticancer activities by cytotoxicity tests" @default.
- W2355276150 created "2016-06-24" @default.
- W2355276150 creator A5072052682 @default.
- W2355276150 date "2004-01-01" @default.
- W2355276150 modified "2023-09-25" @default.
- W2355276150 title "Sampsoniones and xanthones of Hypericum sampsonii from Yunnan Province" @default.
- W2355276150 hasPublicationYear "2004" @default.
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