[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a tricyclic antidepressant which has been used in Europe since 1974. It is the isobutyl side chain homologue of amitriptyline."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][#Branch1][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][C][=C][C][=C][C][=C][Ring1][#C][Ring1][=Branch1][C][N][Branch1][C][C][C]"}]