[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an H-2 receptor antagonist derived from burimamide. It was an intermediate product on the path to developing cimetidine."}, {"from": "gpt", "value": "[C][C][=C][Branch1][=Branch1][N][=C][N][Ring1][Branch1][C][S][C][C][N][C][=Branch1][C][=S][N][C]"}]