Using 1-(5-acetyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridin-3-yl)-6-bromohexan-1-one, 4,4-diphenylpiperidine to produce 1-(5-acetyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridin-3-yl)-6-(4,4-diphenylpiperidin-1-yl)hexan-1-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"
    ]
}
```
