Using 2-(4-(tert-butyl)phenoxy)-N-(9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)acetamide, 3-methyl-1-((2-(2-nitrophenyl)propoxy)carbonyl)-1H-imidazol-3-ium to produce (2R,3S,5R)-5-(2-(2-(4-(tert-butyl)phenoxy)acetamido)-6-oxo-1,6-dihydro-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-yl (2-(2-nitrophenyl)propyl) carbonate, 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"
    ]
}
```
