Nishibe S, Tamayama Y, Sasahara M, Andary C
Faculty of Pharmaceutical Sciences, Higashi-Nippon-Gakuen-University, Hokkaido, Japan.
Phytochemistry. 1995 Feb;38(3):741-3. doi: 10.1016/0031-9422(94)00299-9.
A new phenylethanoid glycoside, plantasioside, was isolated from the aerial parts of Plantago asiatica. The structure of plantasioside was deduced from chemical and spectral evidence to be 1',2'-[beta(3,4-dihydroxyphenyl)-alpha,beta-dioxoethanol]-6'-O- caffeoyl- O-beta-D-glucopyranoside. In addition, the structure of orobanchoside from P. depressa and P. camtschatica was revised to be 1',2'-[beta(3,4-dihydroxyphenyl)- alpha,beta-dioxoethanol]-4'-O-caffeoyl-O-alpha-L-rham- nopyranosyl-(1-->3)-O- beta-D-glucopyranoside from beta-hydroxy-[beta(3,4-dihydroxyphenyl)-ethyl]-4'-O-caffeoyl-O-alp ha-L- rhamnopyranosyl-(1-->2)-O-beta-D-glucopyranoside.
从车前草的地上部分分离出一种新的苯乙醇苷——车前苷。通过化学和光谱证据推断，车前苷的结构为1',2'-[β(3,4-二羟基苯基)-α,β-二氧代乙醇]-6'-O-咖啡酰基-O-β-D-吡喃葡萄糖苷。此外，对平车前和兴安车前中肉苁蓉苷的结构进行了修订，由β-羟基-[β(3,4-二羟基苯基)-乙基]-4'-O-咖啡酰基-O-α-L-鼠李糖基-(1→2)-O-β-D-吡喃葡萄糖苷修订为1',2'-[β(3,4-二羟基苯基)-α,β-二氧代乙醇]-4'-O-咖啡酰基-O-α-L-鼠李糖基-(1→3)-O-β-D-吡喃葡萄糖苷。
