[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a synthetic codeine analogue, Tramadol has central analgesic properties with effects similar to opioids, such as morphine and codeine, acting on specific opioid receptors. Used as a narcotic analgesic for severe pain, it can be addictive and weakly inhibits norepinephrine and serotonin reuptake. (NCI04)"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][C@H1][C][C][C][C][C@@][Ring1][=Branch1][Branch1][=N][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][O][C][O]"}]