Using ethyl (S)-3-amino-2-(((benzyloxy)carbonyl)amino)propanoate, (4-(1-(tert-butoxycarbonyl)piperidin-4-yl)-2-(2-(1-(tert-butoxycarbonyl)piperidin-4-yl)ethyl)butanoyl)glycine to produce di-tert-butyl 4,4'-(3-((2-((2-(((benzyloxy)carbonyl)amino)-3-ethoxy-3-oxopropyl)amino)-2-oxoethyl)carbamoyl)pentane-1,5-diyl)(S)-bis(piperidine-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"
    ]
}
```
