[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a [fentanyl] analog and an opioid analgesic that works by inducing central nervous system (CNS) depression."}, {"from": "gpt", "value": "[C][C][C][=Branch1][C][=O][N][Branch2][Ring1][Branch1][C][C][C][N][Branch1][=Branch1][C][C][Ring1][=Branch1][C][C][C][C][=C][C][=C][S][Ring1][Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]