Sahakitpichan Poolsak, Disadee Wannaporn, Ruchirawat Somsak, Kanchanapoom Tripetch
Chulabhorn Research Institute and Chulabhorn Graduate Institute, Bangkok, Thailand.
Chem Pharm Bull (Tokyo). 2011;59(9):1160-2. doi: 10.1248/cpb.59.1160.
A new 3-hydroxydihydrobenzofuran glucoside, gnaphaliol 9-O-β-D-glucopyranoside (2), was isolated from the aerial parts of Gnaphalium polycaulon together with 1-{(2R*,3S*-3-(β-D-glucopyranosyloxy)-2,3-dihydro-2-[1-(hydroxyl methyl)vinyl]-1-benzofuran-5-yl}-ethanone or gnaphaliol 3-O-β-D-glucopyranoside (1), (Z)-3-hexenyl O-β-D-glucopyranoside (3) and adenosine (4). The absolute configurations at C-2 and C-3 positions of compound 1 were determined to be 2R and 3R. The structures of these compounds were elucidated on the basis of their physical and spectroscopic data.
从多茎鼠麴草的地上部分分离出一种新的3-羟基二氢苯并呋喃葡萄糖苷，鼠麴草醇9-O-β-D-吡喃葡萄糖苷（2），以及1-{(2R*,3S*-3-(β-D-吡喃葡萄糖氧基)-2,3-二氢-2-[1-(羟甲基)乙烯基]-1-苯并呋喃-5-基}-乙酮或鼠麴草醇3-O-β-D-吡喃葡萄糖苷（1）、(Z)-3-己烯基O-β-D-吡喃葡萄糖苷（3）和腺苷（4）。化合物1在C-2和C-3位的绝对构型确定为2R和3R。这些化合物的结构根据其物理和光谱数据得以阐明。
