Using cyanate, 4-nitrobenzyl (2S,4R)-4-((tert-butyldimethylsilyl)oxy)-2-((2-chloropropanamido)methyl)pyrrolidine-1-carboxylate to produce 4-nitrobenzyl (2S,4R)-4-hydroxy-2-((4-methyl-2,5-dioxoimidazolidin-1-yl)methyl)pyrrolidine-1-carboxylate, 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"
    ]
}
```
