Studies on the constituents of Asclepiadaceae plants. LXII. The structures of two glycosides, cynafoside-A and -B, with a novel sugar chain containing a pair of optically isomeric sugars, D- and L-cymaroses, from Cynanchum africanum R. Br.
摘要:
从对南非的牲畜有毒的 Cynanchum africanum R. BR.(Asclepiadaceae)中分离出两种苷,分别命名为 cynafoside-A(1)和-B(2)。它们的结构是根据光谱和化学证据确定的,其不寻常之处在于糖链中同时包含 D 和 L-香豆素。