The new acylated flavonoid bioside 4′-O-methylisoscutellarein-7-O-[4′′′-O-acetyl]allopyranosyl-(1→2)-glucopyranoside (1) was isolated from the aerial parts of Stachys annua L. (Lamiaceae). Subterranean organs yielded for the first time 4′-O-methylisoscutellarein (2) and 4′-O-methylisoscutellarein-7-O-[6′′-Oacetyl] allopyranosyl-(1→2)-glucopyranoside (3). Chemical structures of the isolated compounds were elucidated using NMR spectroscopy.
新的酰化
黄酮生物苷 4′-O-甲基
异莨菪亭-7-O-[4′′′-O-乙酰基]异
吡喃糖基-(1→2)-
吡喃
葡萄糖苷(1)是从鹅掌楸(Lamiaceae)的气生部分中分离出来的。地下器官首次分离出 4′-O-甲基异桔梗
皂甙(2)和 4′-O-甲基异桔梗
皂甙-7-O-[6′′-Oacetyl] allopyranosyl-(1→2)-glucopyranoside(3)。利用核磁共振光谱阐明了分离化合物的
化学结构。