Using (2R,3S)-3-amino-1-((3-isopropylbenzyl)amino)-4-phenylbutan-2-ol, (S)-2-((S)-6-oxo-1-propyl-1,7-diazaspiro[4.4]nonan-7-yl)propanoic acid to produce (S)-N-((2S,3R)-3-hydroxy-4-((3-isopropylbenzyl)amino)-1-phenylbutan-2-yl)-2-((S)-6-oxo-1-propyl-1,7-diazaspiro[4.4]nonan-7-yl)propanamide, 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"
    ]
}
```
