Using piperidine-2,6-dione, 2,2-bis(2-bromoethoxy)-1,2-diphenylethan-1-one to produce 1,1'-(((2-oxo-1,2-diphenylethane-1,1-diyl)bis(oxy))bis(ethane-2,1-diyl))bis(piperidine-2,6-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"
    ]
}
```
