Using 1-benzyl 1,4-di-tert-butyl (4S)-4-((tert-butoxycarbonyl)amino)butane-1,1,4-tricarboxylate, 1-(bromomethyl)-4-nitrobenzene to produce 4-benzyl 1,4-di-tert-butyl (1S,4S)-1-((tert-butoxycarbonyl)amino)-5-(4-nitrophenyl)pentane-1,4,4-tricarboxylate, 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"
    ]
}
```
