Absolute Stereostructures of Hydramacrosides A and B, New Bioactive Secoiridoid Glucoside Complexes from the Leaves of Hydrangea macrophylla SERINGE var. thunbergii MAKINO.
摘要:
从大花绣球花(Hydrangea macrophylla SERINGE var. thunbergii MAKINO)的叶子中分离出两种新的生物活性 secoiridoid 糖苷复合物,命名为水宏糖甙 A 和 B。水宏糖甙 A 和 B 的绝对立体结构通过化学和物理化学证据阐明,包括应用1, 1'-二糖羟基化位移规则和改进的莫舍尔法。水宏糖甙 A 和 B 对由抗原-抗体反应引发的大鼠肥大细胞组胺释放表现出抑制作用。
Indonesian Medicinal Plants. X. Chemical Structures of Four New Triterpene-Glycosides, Gongganosides D, E, F, and G, and Two Secoiridoid-Glucosides from the Bark of Bhesa paniculata (Celastraceae).
Fournew triterpene-glycosides, named gongganosides D (4), E (5), F (6), and G (7), and two new secoiridoid-glucosides, (7R)-7-caffeoyloxysweroside (8) and (7S)-7-caffeoyloxysweroside (9), were isolated from the bark of the Indonesian medicinal plant Bhesa paniculata (Celastraceae). The chemical structures have been elucidated on the bases of their chemical and physiocochemical properties.