Luteolin, quercetin, cinaroside, quercimeritrin, and the new flavonol bioside gigantoside A were isolated from Cephalaria gigantea (Ledeb.) Bobr. (Dipsacaceae) flowers. Spectral properties and chemical transformations established that gigantoside A had the structure quercetin-7-O-[α-L-arabinopyranosyl(1→6)]-β-D-glucopyranoside.
从千层塔(Ledeb.)Bobr.(地肤子科)花中分离出了木犀草素、槲皮素、槲皮苷、槲皮苷和新的黄酮醇生物苷千层塔苷A。通过光谱特性和化学转化,确定了千层塔苷 A 的结构为槲皮素-7-O-[α-L-阿拉伯吡喃糖基(1→6)]-β-D-吡喃葡萄糖苷。