Using 4-(4-chlorobenzyl)-1,5-dimethyl-9-oxo-4,4a,5,6,7,9-hexahydro-1H-imidazo[1,2-a]purin-1-ium to produce 1,5-dimethyl-1,5,6,7-tetrahydro-9H-imidazo[1,2-a]purin-9-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"
    ]
}
```
