[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a centrally acting muscle relaxant that has been in use for more than fifty years without significant evidence for causing hepatic injury."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][C][C][Branch1][Branch2][C][O][C][=Branch1][C][=O][N][C][O][C][=Branch1][C][=O][N][C][Branch1][C][C][C]"}]