Using benzyl 8-(4-methoxy-2-methylphenyl)-5-oxo-1,2,4,4a,5,6-hexahydro-3H-pyrazino[1,2-a]quinoxaline-3-carboxylate to produce 8-(4-methoxy-2-methylphenyl)-2,3,4,4a-tetrahydro-1H-pyrazino[1,2-a]quinoxalin-5(6H)-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"
    ]
}
```
