NOVEL METHYLATED CATECHIN AND COMPOSITION CONTAINING THE SAME
申请人:Yamamoto Mari
公开号:US20100324312A1
公开(公告)日:2010-12-23
A novel methylated catechin is provided which has stronger antiallergic activity than conventionally known methylated catechins such as epigallocatechin-3-O-(3-O-methyl)gallate and epigallocatechin-3-O-(4-O-methyl)gallate.
The epigallocatechin-3-O-gallate derivative is represented by the chemical formula I:
(wherein R
1
to R
6
are each a hydrogen atom or a methyl group, and at least three of R
1
to R
6
are methyl groups) or an isomer thereof.