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为了研究杜鹃兰Cremastra appendiculata干燥假鳞茎95%乙醇提取物的化学成分,采用多种色谱方法进行分离纯化,通过波谱数据及核对文献鉴定化合物结构。从其石油醚和乙酸乙酯萃取部位分离得到13个化合物,分别是4,4’-二甲氧基-9,9’10,10’-四氢-(1,1’-双菲)-2,2’,7,7’-四醇(1),4,4’,7,7’-四羟基-2,2’-二甲氧基-1,1’-双菲(2),3,5-二羟基-2,4-二甲氧基菲(3),大黄素甲醚(4),大黄酚(5),大黄素(6),芫花素(7),槲皮素(8),槲皮素3’-O-β-D-吡喃葡萄糖苷(9),3-甲氧基-4-羟基苯乙醇(10),丁香酸(11),香草醛(12),对羟基苯甲醛(13)。化合物1~3,5~12为首次从该属植物中分离得到。
In order to study the chemical constituents of 95% ethanol extract of dry bulb of Cremastra appendiculata, the compounds were isolated and purified by a variety of chromatographic methods. The structures of the compounds were identified by spectral data and checkups. Thirteen compounds were isolated from their petroleum ether and ethyl acetate fractions, respectively: 4,4’-dimethoxy-9,9’10,10’-tetrahydro- (1,1’- 2,2 ’, 7,7’-tetrol (1), 4,4’, 7,7’-tetrahydroxy-2,2’-dimethoxy- (3), emodin (4), chrysophanol (5), emodin (6), genkwanin (7), quercetin (8), quercetin 3’-O-β-D-glucopyranoside (9), 3-methoxy-4- hydroxyphenethyl alcohol (10), syringic acid (11) , P-hydroxybenzaldehyde (13). Compounds 1 ~ 3,5 ~ 12 were isolated from this genus for the first time.