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Two new xanthones from the stems of Garcinia cowa
被引:28
作者:
Shen, J
[1
]
Yang, JS
[1
]
机构:
[1] Chinese Acad Med Sci, Peking Union Med Coll, Inst Med Plant Dev, Beijing 100094, Peoples R China
关键词:
Garcinia cowa;
Guttiferae;
xanthone;
D O I:
10.1248/cpb.54.126
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
Two new xanthones, 1,5,6-trihydroxy-3-methoxy-4-(3-hydroxyl-3-methylbutyl)xanthone (1) and 1,5-dihydroxy-3-methoxy-6',6'-dimethyl-2H-pyrano(2',3':6,7)-4-(3-methylbut-2-enyl)xanthone (2), have been isolated together with six known xanthones: 1,3,5-trihydroxy-6',6'-dimethyl-2H-pyrano(2',3':6,7)xanth one (3), dulxanthone A (4), 1,5,6-trihydroxy-3,7-dimethoxyxanthone (5), 1,7-dihydroxyxanthone (6), 1,3,5-trihydroxy-6-methoxyxanthone (7), 1,3,6,7-tetrahydroxyxanthone (8), from the stems of Garcinia cowa (Guttiferae).
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页码:126 / 128
页数:3
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