Heterocycles p. 1595 - 1602 (2014)
Update date:2022-08-03
Topics:
Ishihara, Sayaka
Doi, Syoma
Harui, Kota
Okamoto, Taisuke
Okamoto, Shuhei
Uenishi, Joji
Kawasaki, Takashi
Nakajima, Noriyuki
Saito, Akiko
Proanthocyanidins, also known as condensed tannins and/or oligomeric flavonoids, are found in many edible plants and show interesting various biological activities. We report a simple new proanthocyanidin synthesis strategy in which an electrophile derived from a flavan-3-ol peracetate is condensed with 1.5 eq. of a benzylated nucleophile. We demonstrate here the synthesis of procyanidin B1, a (-)-epicatechin-(4β-8)-(+)-catechin dimer, to demonstrate the utility of this method. This strategy is applicable for the synthesis of various commercially available flavan-3-ol and various oligomeric flavonoids.
View MoreTaizhou Elitechemie MediPharma Technology Co.,Ltd.
Contact:+86-523-86810021
Address:Building G14,NO.1 Avenue,China Medical City, Taizhou, Jiangsu,China
Shanghai Synmedia Chemical Co., Ltd
Contact:+86-21-38681880
Address:6th Floor, 11A Building, No.528 Ruiqing Road, Heqing town, Pudong new district, Shanghai China
website:http://www.konochem.com
Contact:86-29-86107037-8015
Address:No.11 Daqing Road,Lianhu District,Xi’an 710082,China
Contact:17316303296
Address:240 Amboy Ave
Nanjing Spring & Autumn Biological Engineering Co., Ltd.
Contact:86-18051083338
Address:Suite# 210, No. 1 BuildingNanjing Agricultural Biotechnology High-tech Entrepreneurship Center, No. 4 Tongwei Road, Xuanwu District, Nanjing,China
Doi:10.1007/BF00635954
()Doi:10.1016/0040-4039(94)85069-0
(1994)Doi:10.3987/COM-97-7740
(1997)Doi:10.1007/BF00945338
()Doi:10.1039/c19670000903
(1967)Doi:10.1135/cccc19960622
(1996)