朝藿甙甲和朝藿甙乙的结构鉴定

STRUCTURE DETERMINATION OF KOREPIMEDOSIDE A AND KOREPIMEDOSIDE B FROM EPIMEDIUM KOREANUM NAKAI

摘要: 自朝鲜淫羊藿(Epimedium koreanum Nakai)地上部分中分离得到二个黄酮类化合物I和II,根据理化数据及光谱分析,其结构分别鉴定为:脱水淫羊藿素3-O-β-D-(6-乙酰基)吡喃葡萄糖(1→3)-α-L-(4-乙酰基)吡喃鼠李糖甙(I)和脱水淫羊藿素3-O-β-D-(2,6-二乙酰基)吡喃葡萄糖(1→3)-α-L-(4-乙酰基)吡喃鼠李糖-7-O-β-D-吡喃葡萄糖甙(II)。I和I为新化合物,分别命名为朝藿甙甲(korepimedoside A)和朝藿甙乙(korepimedoside B)。

Abstract: Two new flavonol glycosides were isolated from the aerial parts of Epimedium koreanum Nakai. On the basis of spectroscopic and chemical evidence, they were elucidated as anhydroicaritin 3-O-β-D-(6-acetyl) glucopyranosyl (1→3)-α-L-(4-acetyl) rhamnopyranoside and anhydroicaritin 3-O-β-D- (2,6 diacetyl) glucopyranosyl (1→3)-α-L-(4-acetyl) rhamnopyranoside-7-O-β-D-glucopyranoside, which were named korepimedoside A and korepimedoside B respectively .