Using ethyl (S)-6-((3S,5R)-5-methyl-2-oxo-3-(((5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)methyl)amino)pyrrolidin-1-yl)-3-(2-methylpyrimidin-5-yl)hexanoate to produce (S)-6-((3S,5R)-5-methyl-2-oxo-3-(((5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)methyl)amino)pyrrolidin-1-yl)-3-(2-methylpyrimidin-5-yl)hexanoic acid, 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"
    ]
}
```
