[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an odorless white crystalline powder. Aqueous solutions are alkaline to litmus and phenolphthalein (pH approximately 9.3). Bitter taste. A narcotic."}, {"from": "gpt", "value": "[C][C][C][Branch1][#C][C][=Branch1][C][=O][N][C][=Branch1][=Branch1][=N][C][Ring1][#Branch1][=O][O-1][C][=C][C][=C][C][=C][Ring1][=Branch1].[Na+1]"}]