abstract |
The present invention provides a compound having a superior serotonin 5-HT 2C receptor activating action. n The present invention relates to a compound represented by the formula (1) n n n n n n n n n n whereinn nring A is an aromatic carbocycle optionally having substituent(s) or an aromatic heterocycle optionally having substituent(s),n nX is —N(R 1 )—, —O— or the like,n nwhen ring A is an aromatic carbocycle optionally having substituent(s), then R 1 is a hydrogen atom, an alkyl group optionally having substituent(s), or the like, andn nwhen ring A is an aromatic heterocycle optionally having substituent(s), then R 1 is a hydrogen atom, an alkyl group optionally having substituent(s), a cycloalkyl group optionally having substituent(s), or the like,n n n nis a single bond or a double bond, andn nn is an integer of 0, 1 or 2,n nor a salt thereof. |