Abstract
Twenty-three compounds were isolated from the ethanol extracts of rhizomes of Dioscorea bulbifera by application of various chromatographic methods.Based on spectrum analyses in combination with literature data comparison,their structures were identified as 2,7-dihydroxy-3,4-dimethoxyphenanthrene (1),7-hydroxy-2,3,4-trimethoxyphenanthrene (2),3,7-dihydroxy-2,4-dimethoxy-9,10-dihydrophenanthrene (3),3-hydroxy-2,4,7-trimethoxy-9,10-dihydrophenanthrene (4),2-hydroxy-3,4,7-trimethoxy-9,10-dihydrophenanthrene (5),7-hydroxy-2,3,4-trimethoxy-9,10-dihydrophenanthrene (6),7-hydroxy-2,4-dimethoxy-9,10-dihydrophenanthrene (7),2-hydroxy-4,7-dimethoxy-9,10-dihydrophenanthrene (8),2,7-dihydroxy-3,4-dimethoxy-9,10-dihydrophenanthrene (9),2'-hydroxy-3,4,5-trimethoxybibenzyl (10),2',3-dihydroxy-4,5-dimethoxybibenzyl (11),3-hydroxy-4,5-dimethoxybibenzyl (12),3,5-dihydroxy-4-methoxybibenzyl (13),pteryxin (14),praeruptorin A (15),kaempferol (16),7,3',4'-trihydroxy-3,5-methoxyflavone (17),diosbulbin B (18),diosbulbin G (19),3-hydroxyβ-damascone (20),(6S,9S)-vomifoliol (21),(6S,9R)-vomifoliol (22),blumenol B (23),respectively.Among them,fourteen compounds including 4-8,10,12-15,20-23 were identified from D.bulbifera for the first time.关键词
黄独/芪类/薯蓣属/角型香豆素/降倍半萜Key words
Dioscorea bulbifera/stilbenoids/Dioscorea/angular coumarins/norsesquiterpenoids分类
医药卫生
