Using ethyl 4-(5-bromo-3-nitropyridin-2-yl)tetrahydro-2H-pyran-4-carboxylate to produce 6'-bromo-2,3,5,6-tetrahydrospiro[pyran-4,3'-pyrrolo[3,2-b]pyridin]-2'(1'H)-one, 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"
    ]
}
```
