Using 5-bromo-7-methoxy-3,4-dihydro-2H-benzo[b][1,4]oxazine, (R)-3,5-dichloro-1-(1-cyclopropylpropyl)pyrazin-2(1H)-one to produce (R)-3-(5-bromo-7-methoxy-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)-5-chloro-1-(1-cyclopropylpropyl)pyrazin-2(1H)-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"
    ]
}
```
