[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an opioid analgesic used as an alternative or adjunct to codeine to treat moderate to severe pain, severe dyspnea, and cough.   It is semi-synthetic, and was developed in Germany in 1908 during an international search to find a more effective antitussive agent to help reduce the spread of airborne infectious diseases such as tuburculosis. It was marketed in 1911."}, {"from": "gpt", "value": "[C][N][C][C][C@][C@@H1][C@H1][Ring1][=Branch1][C][C][=C][Ring1][=Branch1][C][=Branch1][#Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][O][C@H1][Ring1][=C][C@H1][Branch1][Branch1][C][C][Ring1][S][O]"}]