NEW OXIDATION PRODUCTS FROM (-)-EPIGALLOCATECHIN GALLATE IN NEUTRAL SOLUTION

作者：Ohyabu Takayo^*; Taniguchi Shoko; Ito Hideyuki; Hatano Tsutomu

来源：Heterocycles, 2011, 82(2): 1685-+.

DOI：10.3987/COM-10-S(E)81

• Polyphenol
• Epigallocatechin Gallate
• Catechin
• Tannin
• Oxidation

Two new products, EGCG-MOx-D5 (3) and EGCG-MOx-D6 (4), on the oxidation of (-)-epigallocatechin gallate (EGCG) (1) in its aqueous solution were isolated and their structures were elucidated. These structures and those of previously established ones suggested the pathways of the changes in the oxidation. Rapid decrease of 1 accompanied by the formations of the oxidative products suggested the participation of these products in the biological and pharmacological effects reported to be those of 1.

• 出版日期2011-3-1