Dihydrostilbene glycosides from <i>Camellia sinensis</i> var. assamica and their cytotoxic activity
作者:Nguyen Thi Cuc、Duong Thi Hai Yen、Pham Hai Yen、Dan Thi Thuy Hang、Bui Huu Tai、Yohan Seo、Wan Namkung、Seung Hyun Kim、Pham Van Cuong、Phan Van Kiem、Nguyen Xuan Nhiem、Tran Minh Ngoc
DOI:10.1080/14786419.2021.1900844
日期:2022.8.3
3-O-α-L-rhamnoside (6), quercitrin (7), (6S,9R)-roseoside (8), (-)-epicatechin 3-O-gallate (9), and (-)-epigallocatechin 3-O-gallate (10) have been isolated from the methanol extract of the leaves of Camellia sinensis var. assamica (J.W.Mast.) Kitam. (synnonym of Camellia assamica (Mast.) H.T.Chang) (Theaceae). Their structures were elucidated by spectroscopic methods (1 D-, 2 D-NMR) and mass spectra. All compounds
摘要 三种未描述的二氢芪糖苷,3,5-二羟基二氢芪 4'- O -[6''- O -(4'''-羟基苯甲酰基)]- β -D-吡喃葡萄糖苷 ( 1 ), 3,5-二羟基二氢芪 4'- O -(6''- O-没食子酰基) -β -D-吡喃葡萄糖苷( 2 )、3,5-二羟基二氢芪4'- O- [6''- O- (3''',4'''-二甲氧基)没食子酰基] -β -D-吡喃葡萄糖苷( 3 ),以及七种已知化合物,山柰酚3 - O - β -D-吡喃葡萄糖苷( 4 )、异槲皮苷( 5 )、山柰酚3 -O-α-L-鼠李糖苷 ( 6 )、槲皮素 ( 7)、(6 S ,9 R )-玫瑰苷 ( 8 )、(-)-表儿茶素 3- O-没食子酸酯 ( 9 )和 (-)-表没食子儿茶素 3 - O-没食子酸盐 ( 10 ) 已从山茶叶的甲醇提取物中分离出来。阿萨米卡(JWMast.)基塔姆。(山茶花的同义词(桅杆