Using 1-((2R,3R,4R,5S)-3-fluoro-4-hydroxy-5-(iodomethyl)-3-methyltetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione to produce 1-((2R,3R,4R)-3-fluoro-4-hydroxy-3-methyl-5-methylenetetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione, please predict the condition, including solvent and agent in SMILES notation in json format like:

```JSON
{
    "solvent": [
        "CCN(CC)CC",
        "CCOC(C)=O"
    ],
    "agent": [
        "On1nnc2ccccc21",
        "C(=NC1CCCCC1)=NC1CCCCC1",
        "Cl"
    ]
}
```
