[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a ribonucleotide reductase inhibitor with activity against retroviruses. Didox inhibits retrovirus replication by depleting the deoxynucleotides obligatory for synthesis of the proviral DNA intermediate of retrovirus replication."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][#C][=C][Branch1][O][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][O][O][O]"}]