Using 1-((7S,11bR)-7-phenyl-1,3,4,6,7,11b-hexahydro-2H-pyrazino[2,1-a]isoquinolin-2-yl)butan-1-one to produce (7S,11bR)-2-butyl-7-phenyl-1,3,4,6,7,11b-hexahydro-2H-pyrazino[2,1-a]isoquinoline, 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"
    ]
}
```
