Abstract From the leaves of Ipomoea fistulosa (Convolvulaceae) a resinous high-molecular-weight ester glycoside has been isolated, similar to the resins found in the underground organs of other convolvulaceae. It consists of 7-hydroxy decanoic acid, 11-hydroxy tetradecanoic acid, 11-hydroxy hexadecanoic acid, and 3,11-dihydroxy tetradecanoic acid glycosidically bound to several residues of d -glucose
摘要 从 Ipomoea fistulosa (Convolvulaceae) 的叶子中分离出一种
树脂状的高分子量酯糖苷,类似于在其他旋花科地下器官中发现的
树脂。它由 7-
羟基癸酸、
11-羟基十四烷酸、
11-羟基十六烷酸和 3,11-二羟基
十四烷酸与 d-
葡萄糖、d-岩藻糖、d-奎诺糖和 l-的几个残基糖苷结合组成
鼠李糖形成糖苷酸,当量重量为 800 至 1300。一部分 7-
羟基癸酸被分离为 β-d-
喹诺酮苷。糖苷酸相互酯化,形成平均分子量约为 25,000 的密切相关聚酯的混合物,在超速离心机中显示出宽分布曲线。