首页> 外国专利> IMPROVED PROCESSES FOR THE PREPARATION OF PROTECTED -(+)-CATECHIN AND (-)-EPICATECHIN NOMOMERS, FOR COUPLING THE PROTECTED MONOMERS WITH AN ACTIVATED, PROTECTED EPICATECHIN MONOMER, AND FOR THE PREPARATION OF EPICATECHIN-(4β, 8)-EPICATECHIN OR -CATECHIN DIMERS AND THEIR DIGALLATES

IMPROVED PROCESSES FOR THE PREPARATION OF PROTECTED -(+)-CATECHIN AND (-)-EPICATECHIN NOMOMERS, FOR COUPLING THE PROTECTED MONOMERS WITH AN ACTIVATED, PROTECTED EPICATECHIN MONOMER, AND FOR THE PREPARATION OF EPICATECHIN-(4β, 8)-EPICATECHIN OR -CATECHIN DIMERS AND THEIR DIGALLATES

机译：制备受保护的-（+）-儿茶素和（-）-表艾奇素单体的改进方法，用于将受保护的单体与活化的，受保护的表艾奇素单体偶联，以及制备表艾奇-（4β，8）-表艾奇素或-儿茶素丁酯及其缩图

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摘要

Improved processes for the preparation of tetra-O-benzyl protected -(+)-catechin, for the coupling of the tetra-O-benzyl protected -(+)-catechin or -(-)-epicatechin with a C-4 activated, tetra-O-benzyl protected -(-)-epicatechin, for the galloylation of the (-)-epicatechin-(4β,8)-(+)-catechin or -(-)-epicatechin dimer to the dimer digallates, and for the deprotection (i.e., debenzylation) of the protected -(-)-epicatechin dimers and protected -(-)-epicatechin dimer digallates are disclosed.

机译：改进的制备四-O-苄基保护的-（+）-儿茶素的方法，用于将四-O-苄基保护的-（+）-儿茶素或-（-）-表儿茶素与C-4活化的偶联，四-O-苄基保护的-（-）-表儿茶素，用于（-）-表儿茶素-（4β，8）-（+）-儿茶素或-（-）-表儿茶素二聚体到二聚体二没食子酸酯的甲酰基化，公开了保护的-（-）-表儿茶素二聚体和保护的-（-）-表儿茶素二聚体二去甲酸酯的脱保护（即，脱苄基作用）。

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公开/公告号WO2007005248A2

专利类型
公开/公告日2007-01-11

原文格式PDF
申请/专利权人 MARS INCORPORATED;ROMANCZYK LEO JR.;SHARMA PRADEEP K.;KOLCHINSKI ALEXANDER G.;SHEA HELENE A.;GOU YANNI;
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申请/专利号WO2006US23698
发明设计人 ROMANCZYK LEO JR.;SHARMA PRADEEP K.;KOLCHINSKI ALEXANDER G.;SHEA HELENE A.;GOU YANNI;
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申请日2006-06-19
分类号C07D311/26;
国家 WO
入库时间 2022-08-21 20:51:40

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