| abstract |
A pharmaceutical composition, a food composition and a cosmetic composition each comprising at least one compound represented by the general formula (I'): (I') wherein R1 represents a hydrogen atom, a hydroxyl group, a methoxy group or an ethoxy group, and R2 represents a hydroxyl group, a methoxy group or an acetoxy group, or R1 and R2 may together form a methylenedioxy group; and R represents a group represented by the formula: where Y represents an ethylene group or a vinylene group; m and n independently represent an integer ranging from 0 to 7 which satisfies the following equation: m+n= 2 to 8; R3 and R4 independently represent a hydrogen atom, a methyl group or an ethyl group, provided that: (1) when R1 is a methoxy group, R2 is not a hydroxyl group; and (2) when R1 is a hydroxyl group, R2 is not a hydroxyl or acetoxy group. It becomes possible to provide a stable capsinoid derivative and also provide a pharmaceutical composition, a food composition, a cosmetic composition or the like comprising the capsinoid derivative as an active ingredient. |