abstract |
This TRPA1 activity inhibitor contains a compound represented by formula (I) wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or a methyl group, and R 5 , R 6 , R 7 and R 8 each independently represent a hydrogen atom, a methyl group or -OR 9 -OH (in the formula, R 9 represents an alkylene group optionally having a substituent group), provided that at least one group of R 5 , R 6 , R 7 and R 8 is -O-R 9 -OH. |