Phytochemistry p. 1209 - 1216 (1986)
Update date:2022-07-31
Topics:
Kolodziej, Herbert
Key Word Index - Biomimetic synthesis; procyanidins B1-B8; 3,4-cis-biflavanoid; all-<4,8>-bi-<(-)-epicatechin>-(+)-catechin; 1H NMR parameters. Condensation of (2R,3S,4R or S)-leucocyanidin or the 5,7,3',4'-tetramethyl ether of (2R,3R,4S)-leucocyanidin with flavan-3-ols yielded dimeric flavanoids which were converted to their octamethyl ether diacetates, or the deca-acetates for the 2,3-trans-procyanidin series.Comparison is made of the 1H NMR spectra of the deca-acetate and octamethyl ether diacetate derivatives which lead to useful diagnostic shift parameters characteristic of their structures.Condensation afforded a novel biflavanoid with a 3,4-cis-configuration and a triflavanoid of 'mixed' stereochemistry.
View MoreContact:86-10-62983737; +86-10-51287608
Address:4/F Building C, 2 Shangdi Xinxi Road
Hangzhou Gangjin Chemical Co.,Ltd.(expird)
Contact:+86-571-85109780
Address:707 Zhejiang Minhang Bldg., No.290 Zhongshan North Road, Hangzhou 310003, China
Taizhou Chenyi chemical co. LTD,
Contact:13736652831
Address:NO.273 SHANGHAI SOUTH STREET,LUQIAO DISTRICT,ZHEJIANG PROVINCE,CHINA.
Hangzhou Maytime Bio-Tech Co.,Ltd.
website:http://www.maytime.com.cn
Contact:+86-571-88925295 88920965
Address:NO.2-1701 Ganghui Central Ningwei Street, Xiaoshan Hangzhou Zhejiang China
ShenZhen InnoSyn Biotech Co.,Ltd
website:http://www.innosyns.com
Contact:+86-755-28351685
Address:Floor 5 & 6, Building A1, HAIKEXING Strategic Innovative Industrial Park, 16 BaoShan Road, PingShan District
Doi:10.1021/jo0523363
(2006)Doi:10.1016/j.tetlet.2010.10.163
(2011)Doi:10.1016/j.bmcl.2005.06.044
(2005)Doi:10.1021/acsmedchemlett.1c00038
(2021)Doi:10.1021/om051031b
(2006)Doi:10.1007/BF00953244
(1986)
