Using iodomethane, 4'-hydroxy-6'-(4-methoxybenzyl)spiro[cyclohexane-1,5'-pyrrolo[3,4-b]pyridin]-7'(6'H)-one to produce 6'-(4-methoxybenzyl)-1'-methylspiro[cyclohexane-1,5'-pyrrolo[3,4-b]pyridine]-4',7'(1'H,6'H)-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"
    ]
}
```
