Spinacetin, A New Caffeoylglycoside, and Other Phenolic Compounds from Gnaphalium uliginosum
作者:D. N. Olennikov、N. K. Chirikova、N. I. Kashchenko
DOI:10.1007/s10600-015-1498-y
日期:2015.11
The new flavonoid gnaphaloside C, which was identified based on UV, MS, and NMR spectral data as spinacetin-7-O-(6″-O-caffeoyl)-β-D-glucopyranoside, and 24 known compounds including for the first time from this species quercetagetrin, quercetagetin-7-O-(6″-O-caffeoyl)glucoside, patulitrin, tinctoside, and spinacetin-7-O-glucoside were isolated from the aerial part of Gnaphalium uliginosum. HPLC determined that G. uliginosum contained mainly caffeoylquinic acids (10.54–48.48 mg/g). The flavonoid content was 1.20–16.55 mg/g.
根据紫外光谱、质谱和核磁共振光谱数据,鉴定出新的黄酮类化合物钩藤甙 C 为旋醋素-7-O-(6″-O-咖啡酰基)-β-D-吡喃葡萄糖苷,以及 24 种已知化合物,包括首次从该物种中分离出的槲皮素、槲皮素-7-O-(6″-O-咖啡酰基)葡萄糖苷、棒曲霉素、酊剂苷和旋覆花素-7-O-葡萄糖苷。高效液相色谱法测定,Gnaphalium uliginosum 主要含有咖啡酰奎宁酸(10.54-48.48 毫克/克)。黄酮含量为 1.20-16.55 毫克/克。