| abstract |
It was found that the compound having a binding activity to the cannabinoid type 2 receptor represented by the formula (I): n n n wherein R 1 is a group represented by the formula: —Y 1 —Y 2 —Y 3 —R a wherein Y 1 is single bond or the like; Y 2 is —C(═O)—NH— or the like; Y 3 is optionally substituted aryl or the like; R 2 is hydrogen or the like; R 3 is alkyl or the like; R 4 is alkyl or the like; R 5 is optionally substituted alkyl or the like; or R 3 and R 4 taken together with the adjacent atom form cyclic group or the like. |