The constituents of Cistanche tubulosa (Schrenk) Hook. f. II. Isolation and structures of a new phenylethanoid glycoside and a new neolignan glycoside.
作者:Fumio YOSHIZAWA、Takeshi DEYAMA、Nobuo TAKIZAWA、Khan USMANGHANI、Mansoor AHMAD
DOI:10.1248/cpb.38.1927
日期:——
A New phenylethanoid glycoside, named tubuloside E (I), and a new neolignan glycoside, dehydrodiconiferyl alcohol γ'-O-β-D-glucopyranoside (II), were isolated from the whole plants of Cistanche tubulosa (SCHRENK)HOOK. f. (Orobanchaceae), together with dehydrodiconiferyl alcohol 4-O-β-D-glucopyranoside (III), syringalide A 3'-α-L-rhamnopyranoside (IV), isosyringalide 3'-α-L-rhamnopyranoside (V), (+)-syringaresinol O-β-D-glucopyranoside (VI), (+)-pinoresinol O-β-D-glucopyranoside (VII), liriodendrin (VIII), 6-deoxycatalpol (IX), 8-epiloganic acid (X), 20-hydroxyecdysone (XI), 8-hydroxygeraniol 1-β-D-glucopyranoside (XII) and syringin (XIII). The structure of tubuloside E (I) was established as 2-(3, 4-dihydroxyphenyl)ethyl O-α-L-rhamnopyranosyl-(1→3)-2-O-acetyl-4-O-p-coumaroyl-β-D-glucopyranoside on the basis of chemical evidence and spectral data.
一种新的苯乙醇苷,名为管状苷E (I),和一种新的新木脂酸苷,去氢二香草醇γ'-O-β-D-葡萄糖吡喃苷 (II),从全株管状肉苷(Cistanche tubulosa (SCHRENK)HOOK. f.,爵床科)中分离出来,此外还分离出了去氢二香草醇4-O-β-D-葡萄糖吡喃苷 (III)、香豆醇A 3'-α-L-鼠李吡喃苷 (IV)、异香豆醇 3'-α-L-鼠李吡喃苷 (V)、(+)-香豆苷 O-β-D-葡萄糖吡喃苷 (VI)、(+)-松脂醇 O-β-D-葡萄糖吡喃苷 (VII)、黄心树苷 (VIII)、6-脱氧卡塔普洛 (IX)、8-表罗甘酸 (X)、20-羟基蜕皮素 (XI)、8-羟基香叶醇1-β-D-葡萄糖吡喃苷 (XII)和香豆醇 (XIII)。根据化学证据和光谱数据,确定管状苷E (I)的结构为2-(3, 4-二羟基苯)乙基 O-α-L-鼠李吡喃糖-(1→3)-2-O-乙酰基-4-O-对香豆酸基-β-D-葡萄糖吡喃苷。