Using 6-cyclohexyl-2-phenyl-6,7-dihydro-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]pyrimidine-5,8-dione, ethyl 4-bromobutanoate to produce ethyl 4-(6-cyclohexyl-5,8-dioxo-2-phenyl-5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]pyrimidin-4-yl)butanoate, 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"
    ]
}
```
