Monoterpenoid and phenylethanoid glycosides from Ligustrum pedunculare
作者:Zheng-Dan He、Shinichi Ueda、Masako Akaji、Tetsuro Fujita、Kenichiro Inoue、Chong-Ren Yang
DOI:10.1016/s0031-9422(00)89802-7
日期:1994.6
Two new phenylethanoid glycosides, lipedosides A-I and A-II as well as six newmonoterpeneglycosides, lipedosides B-I-B-VI were isolated together with three known constituents, osmanthuside B, anatolioside and linalool from Ligustrum pedunculare. Their structures have been elucidated by chemical and spectroscopic methods.
分离出两种新的苯乙醇苷 AI 和 A-II 以及六种新的单萜糖苷 BIB-VI 以及来自女贞子的三种已知成分:桂花苷 B、苦杏仁苷和芳樟醇。它们的结构已通过化学和光谱方法阐明。
Collective syntheses of phenylethanoid glycosides by interrupted Pummerer reaction mediated glycosylations
The collective total syntheses of nine natural phenylethanoid glycosides (PhEGs) together with proposed Incanoside B in a divergent mode were described. By using a core disaccharide as common intermediate, our developed interrupted Pummerer reaction mediated (IPRm) glycosylations adopting latent-active strategy enables the efficient, concise and divergent syntheses of these bioactive PhEGs. Among them, five natural PhEGs, Darendoside B (1), Cistanoside G (3), Decaffeoyl acteoside (4), Kankanoside F (5) and 4 '''-epi-Leonoside F (7) were the first time being synthesized. According to the synthesis of 4 '''-epi-Leonoside F (7), we also elucidated the real structure of carbohydrate component of the PhEG isolated from Rehmannia glutinosa which was misled as "Leonoside F".[GRAPHICS].