Studies on the Constituents of Catalpa Species. VI. Monoterpene Glycosides from the Fallen Leaves of Catalpa ovata G. DON.
作者:Koichi MACHIDA、Megumi ANDO、Yasunori YAOITA、Rie KAKUDA、Masao KIKUCHI
DOI:10.1248/cpb.49.732
日期:——
Five new monoterpene glycosides, ovatolactone 7-O-(6'-O-p-hydroxybenzoyl)-beta-D-glucopyranoside, ovatic acid methyl ester 7-O-(6'-O-p-hydroxybenzoyl)-beta-D-glucopyranoside, 7-O-p-hydroxybenzoylovatol 1-O-(6'-O-p-hydroxybenzoyl)-beta-D-glucopyranoside, 6'-O-p-hydroxybenzoylcatalposide and (2E,6R)-2,6-dimethyl-8-hydroxy-2-octenoic acid 8-O-[6'-O-(E)-p-coumaroyl]-beta-D-glucopyranoside were isolated
五个新的单萜糖苷,戊内酯7-O-(6'-Op-羟基苯甲酰基)-β-D-吡喃葡萄糖苷,戊酸甲酯7-O-(6'-Op-羟基苯甲酰基)-β-D-吡喃葡萄糖苷,7-对羟基苯甲酰氯1-O-(6'-Op-羟基苯甲酰基)-β-D-吡喃葡萄糖苷,6'-Op-羟基苯甲酰基catalposide和(2E,6R)-2,6-二甲基-8-羟基-2-辛烯酸8从Catalpa ovata G. Don的落叶中分离出-O- [6'-O-(E)-对香豆酰基]-β-D-吡喃葡萄糖苷。它们的结构通过广泛的光谱研究和合成来确定。