Cancer chemopreventive theasaponin derivatives from the total tea seed saponin of Camellia sinensis
Cancer chemopreventive theasaponin derivatives from the total tea seed saponin of Camellia sinensis
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茶树总皂苷的癌症化学预防茶皂苷衍生物
DOI:
10.1016/j.jff.2014.11.017
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发表时间:
2015
影响因子:
5.6
通讯作者:
Yingying Si
中科院分区:
文献类型:
--
作者:
Xiangrong Zhang;Wenli Wang;Jiayuan Li;Yingying Si
Natural QR (quinine oxidoreductase) inducers play critical roles in cancer chemoprevention. Because tea seed saponins ofCamellia sinensisexhibited significant QR inducing activities, this study aimed to find bioactive theasaponin derivatives by structure modification on the sugar part and acyl groups. Three kinds of hydrolysis methods were employed to afford 7 major acid hydrolysis products (1–7), 10 alkaline hydrolysates (8–17) and 2 derivatives (3, 18) by oxidative alkaline-degradation. They were elucidated as kaempferol (1), camelliagenin B (2), camelliagenin A (3), 21-O-angeloybarringtogenol C (4), 5-hydroxymethylfurfural (5), 16-O-angeloybarringtogenol (6), 23-aldehyde-16-O-angeloybarringtogenol (7), desacyl-assamsaponin D (8), desacyl-theasaponin A5(9), desacyl-assamsaponin E (10), desacyl-theasaponin C1(11), desacyl-theasaponin E (12), desacyl-theasaponin E13(13), desacyl-assamsaponin F (14), desacyl-theasaponin F1(15), desacyl-theasaponin G (16), desacyl-assamsaponin A (17), camelliagenin C (18) accordingly. By the QR inducing activity assay, compounds7, 12and14were selected as potential QR inducing agents with IR value at 2.87, 3.02 and 2.33.
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DOI:
--
发表时间:
2008-03
期刊:
Yao xue xue bao = Acta pharmaceutica Sinica
影响因子:
--
作者:
Yuan Huang;Ning Li;Xian Li;Lusha Gao;Dali Meng
通讯作者:
Yuan Huang;Ning Li;Xian Li;Lusha Gao;Dali Meng
影响因子:
3.6
作者:
Chen, ZP;Malapetsa, A;Panasci, LC
通讯作者:
Panasci, LC
影响因子:
1.8
作者:
Morikawa, Toshio;Matsuda, Hisashi;Yoshikawa, Masayuki
通讯作者:
Yoshikawa, Masayuki
影响因子:
1.7
作者:
Yoshikawa, M;Morikawa, T;Matsuda, H
通讯作者:
Matsuda, H
影响因子:
3.4
作者:
Li, Ning;Ma, Zhong-jun;Li, Xian
通讯作者:
Li, Xian