| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing liposoluble catechin or liposoluble proanthocyanidin that can make catechin, proanthocyanidin liposoluble while retaining activity of these compounds. SOLUTION: The method for producing the liposoluble catechin or the liposoluble proanthocyanidin comprises causing catechin or proanthocyanidin to react with a compound represented by formula (I): R<SP>1</SP>R<SP>2</SP>CR<SP>3</SP>R<SP>4</SP>(wherein R<SP>1</SP>is a hydrocarbon group; R<SP>2</SP>is hydrogen or a hydrocarbon group; R<SP>3</SP>is hydrogen or a hydrocarbon group; and R<SP>4</SP>is a hydroxy group, or R<SP>3</SP>and R<SP>4</SP>are linked together to form a keto group). COPYRIGHT: (C)2010,JPO&INPIT |
