Using ethyl (4S,5R)-4-((tert-butoxycarbonyl)amino)-5-((tert-butyldimethylsilyl)oxy)-3-oxohexanoate, 2-bromo-1-(3-(cyclopropylamino)-6-fluoro-2-methylquinoxalin-5-yl)ethan-1-one to produce ethyl (4S,5R)-4-((tert-butoxycarbonyl)amino)-5-((tert-butyldimethylsilyl)oxy)-2-(2-(3-(cyclopropylamino)-6-fluoro-2-methylquinoxalin-5-yl)-2-oxoethyl)-3-oxohexanoate, 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"
    ]
}
```
