Using methanethiol, (2R,3R,3aS,9aR)-3-hydroxy-2-(hydroxymethyl)-7-methyl-2,3,3a,9a-tetrahydro-6H-furo[2',3':4,5]oxazolo[3,2-a]pyrimidin-6-one to produce 1-((2R,3R,4R,5R)-4-hydroxy-5-(hydroxymethyl)-3-(methylthio)tetrahydrofuran-2-yl)-5-methylpyrimidine-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"
    ]
}
```
