[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a nucleoside reverse transcriptase inhibitor analog of cytosine."}, {"from": "gpt", "value": "[C][=C][C@@H1][Branch1][#Branch1][O][C@@H1][Ring1][Branch1][C][O][N][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][F]"}]