[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a 1-methylnicotinamide and a deuterated compound."}, {"from": "gpt", "value": "[2H][C][Branch1][C][2H][Branch1][C][2H][N+1][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][N]"}]