Using methyl (2S,4S)-4-(4-bromophenoxy)pyrrolidine-2-carboxylate, 1,3-dichloro-5-isocyanatobenzene to produce (6S,7aS)-6-(4-bromophenoxy)-2-(3,5-dichlorophenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione, 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"
    ]
}
```
