Using (bromomethyl)benzene, 1,1',1'',1'''-((2S,3R,4S,5R)-2-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2,3,4,5-tetrayl)tetrakis(ethan-1-one) to produce 2-amino-7-benzyl-1,7-dihydro-6H-purin-6-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"
    ]
}
```
