Ono M, Honda F, Karahashi A, Kawasaki T, Miyahara K
Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan.
Chem Pharm Bull (Tokyo). 1997 Dec;45(12):1955-60. doi: 10.1248/cpb.45.1955.
Alkaline hydrolysis of the ether-soluble resin glycoside fraction of seeds of Quamoclit (Q.) x multifida, a hybrid between Q. pinnata and Q. coccinea, gave new glycosidic acids, multifidinic acids A and B, along with two known glycosidic acids, quamoclinic acid A and operculinic acid A, and three organic acids, (2S)-2-methylbutyric acid, n-decanoic acid and n-dodecanoic acid. Further, as major ether-soluble resin glycosides, new jalapins named multifidins I and II, were isolated accompanied by quamoclins I-IV, which were previously obtained from seeds of Q. pinnata. The structures of multifidins I and II, and multifidinic acids A and B have been determined on the basis of chemical and spectral data.
对圆叶茑萝（Quamoclit (Q.) x multifida）种子的醚溶性树脂糖苷部分进行碱性水解，圆叶茑萝是羽叶茑萝（Q. pinnata）和猩红色茑萝（Q. coccinea）的杂交种，得到了新的糖苷酸——多裂茑萝酸A和B，以及两种已知的糖苷酸——茑萝酸A和盖裂茑萝酸A，还有三种有机酸——(2S)-2-甲基丁酸、正癸酸和正十二烷酸。此外，作为主要的醚溶性树脂糖苷，分离出了名为多裂茑萝素I和II的新泻根素，同时还伴有茑萝素I-IV，茑萝素I-IV之前是从羽叶茑萝种子中获得的。基于化学和光谱数据确定了多裂茑萝素I和II以及多裂茑萝酸A和B的结构。
