Journal of the Chinese Chemical Society p. 77 - 81 (1996)
Update date:2022-08-04
Topics:
Ma, Ying-Tsun
Hsu, Feng-Lin
Lan, Shu-Jan J.
Chen, Chieh-Fu
From the acetone extract of fresh betel nuts, two procyanidin pentamers, two procyanidin tetramers and three procyanidin trimers, along with (+)-catechin, (-)-epicatechin, procyanidin A-1, procyanidin B-1, procyanidin B-2, and procyanidin B-7 were isolated. Based on 1H NMR and 13C NMR spectral data as well as the results of thiolysis degradation, the chemical structures of two series of oligomeric arecatannins A and B have been established. The arecatannins from betel nuts were found to be condensed-type tannins which possess (-)-epicatechin unit and (+)-catechin units. All arecatannins had C4-C8 linked (-)-epicatechin in the upper units whereas the (+)-catechin in the terminal unit had C4-C8 or C4-C6 linkage.
View MoreWuxi Innopal International Trade CO.,LTD
Contact:+86-510-80711901-8003
Address:Room 402,Building 5,Longze Garden,No.17,South huanjiu Road,Yixing City, Jiangsu,China
Contact:+65 9658 0999
Address:26 Sin Ming Lane, Midview City, #05-118, Singapore 573971
Wuxi Pharma-Trading Import & Export Co.,Ltd.
Contact:+86-510-82304590 82716390
Address:Room 523,Youzu Alliance Building,No.88 Renmin Zhonglu,Wuxi,Jiangsu,China
ClickChem Technology Co., Limited
Contact:+86-0310-6519966/0531-52893837
Address:No.750 Shunhua Road, High-Tech Zone, Jinan city, Shandong China
Contact:0833-5590788/5590338/5590055
Address:Victory in the town of Red Star Village,Mount Emei City,industrial concentration area storage processing logistics parkpark
Doi:10.1016/S0008-6215(00)83834-3
(1980)Doi:10.1021/jo01295a004
(1980)Doi:10.1021/acs.jmedchem.5b01925
(2016)Doi:10.1002/chem.200305260
(2004)Doi:10.1021/om049699y
(2004)Doi:10.1016/j.tet.2004.03.084
(2004)
