Two New Phenolic Glycosides from Gnaphalium affine D. Don and Their Anti-Complementary Activity
作者:Junli Li、Doudou Huang、Wansheng Chen、Zhongxin Xi、Cheng Chen、Guanghui Huang、Lianna Sun
DOI:10.3390/molecules18077751
日期:——
Two new phenolic glycosides, named gnaphaffine A and B (compounds 1 and 2), were isolated from Gnaphalium affine. together with six known compounds, including caffeic acid (3), everlastoside L (4), isorhamnetin-7-O-β-d-glucopyranoside (5), quercetin-3-O-β-d-glucopyranoside (6), scutellarein-7-O-β-d-glucoside (7) and api-genin-7-O-β-d-glucopyranoside (8). Their structures were elucidated by spectroscopic
从 Gnaphalium affine 中分离出两种新的酚苷,命名为 gnaphaffine A 和 B(化合物 1 和 2)。连同六种已知化合物,包括咖啡酸 (3)、everlastoside L (4)、异鼠李素-7-O-β-d-吡喃葡萄糖苷 (5)、槲皮素-3-O-β-d-吡喃葡萄糖苷 (6)、黄芩素-7-O-β-d-葡萄糖苷 (7) 和 api-genin-7-O-β-d-吡喃葡萄糖苷 (8)。它们的结构通过光谱方法阐明,包括 ESI-MS 和 2D NMR 光谱(HMQC 和 HMBC)。评价所有化合物对体外补体系统经典途径的抗补体活性。