Two novel flavonol triglycosides, camelliaside A and B, have been isolated fromseeds of Camelliasinensis. The structures were determined to be kaempferol 3-O-[2-O-beta-D- galactopyranosyl-6-O-alpha-L-rhamnopyranosyl]-beta-D-glucopyranoside and kaempferol 3-O-[2-O-beta- D-xylopyranosyl-6-O-alpha-L-rhamnopyranosyl]-beta-D-glucopyranoside on the basis of spectroscopic, chemical and enzymatic studies
两种新型黄酮醇三糖苷,山茶苷 A 和 B,已从山茶花的种子中分离出来。结构被确定为山奈酚 3-O-[2-O-β-D-吡喃半乳糖基-6-O-α-L-吡喃鼠李糖基]-β-D-吡喃葡萄糖苷和山奈酚 3-O-[2-O-β - D-xylopyranosyl-6-O-α-L-rhamnopyranosyl]-β-D-吡喃葡萄糖苷基于光谱、化学和酶学研究。这些类型的糖苷间键,Gal(1----2)[Rha(1----6)]Glc 和 Xyl(1----2)[Rha(1----6)]Glc,以前在黄酮和黄酮醇苷中没有报道过。