Using tert-butyl (R)-pyrrolidin-3-ylcarbamate, (R)-2-(benzyloxy)-N-((1S,2R,3S,4R)-4-(2-chloro-6-((2,2-diphenylethyl)amino)-9H-purin-9-yl)-2,3-dihydroxycyclopentyl)propanamide to produce tert-butyl ((R)-1-(9-((1R,2S,3R,4S)-4-((R)-2-(benzyloxy)propanamido)-2,3-dihydroxycyclopentyl)-6-((2,2-diphenylethyl)amino)-9H-purin-2-yl)pyrrolidin-3-yl)carbamate, 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"
    ]
}
```
