Using N-methyl-1-((1R,4R)-4-phenyl-1,2,3,4-tetrahydroisoquinolin-1-yl)methanamine, diethyl oxalate to produce (7S,11bR)-2-methyl-7-phenyl-1,6,7,11b-tetrahydro-2H-pyrazino[2,1-a]isoquinoline-3,4-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"
    ]
}
```
