Using ((benzyloxy)carbonyl)-D-proline, (S)-1-(N-(L-valyl)-N-methyl-L-valyl-L-prolyl)-N-benzylpyrrolidine-2-carboxamide to produce benzyl (R)-2-(((S)-1-(((S)-1-((S)-2-((S)-2-(benzylcarbamoyl)pyrrolidine-1-carbonyl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-yl)(methyl)amino)-3-methyl-1-oxobutan-2-yl)carbamoyl)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"
    ]
}
```
