Indonesian Medicinal Plants. XV. Chemical Structures of Five New Resin-Glycosides, Merremosides a, b, c, d, and e, from the Tuber of Merremia mammosa (Convolvulaceae).
作者:Isao KITAGAWA、Nam In BAEK、Keiko KAWASHIMA、Yoshihiro YOKOKAWA、Masayuki YOSHIKAWA、Kazuyoshi OHASHI、Hirotaka SHIBUYA
DOI:10.1248/cpb.44.1680
日期:——
Five new resin-glycosides, named merremosides a (1), b (2), c (3), d (4), and e (5), were isolated from the tuber of Merremia mammosa (LOUR.) HALLIER f. (Convolvulaceae), an Indonesian medicinal plant. The structures of 1, 2, 3, 4, and 5 have been elucidated on the basis of chamical and physicochemical evidence, including syntheses of (11S)-(+)- and (11R)-(-)-jalapniolic acid (16b and 18b) and the glycosidic acid designated as merremoside i (6).
从印度尼西亚药用植物白花牵牛(Merremia mammosa (LOUR.) HALLIER f.)的块茎中分离得到5个新的树脂苷类化合物,命名为merremosides a(1)、b(2)、c(3)、d(4)和e(5)。通过化学和物理化学证据,包括(11S)-(+)-和(11R)-(-)-jalapniolic酸(16b和18b)的合成以及命名为merremoside i(6)的苷酸,阐明了1、2、3、4和5的结构。