Using benzyl carbonochloridate, ethyl 3-hydroxy-4-oxo-6,7,8,9,10,11-hexahydro-4H-7,11-methanopyrimido[1,2-a][1,5]diazocine-2-carboxylate to produce 9-benzyl 2-ethyl 3-hydroxy-4-oxo-7,8,10,11-tetrahydro-4H-7,11-methanopyrimido[1,2-a][1,5]diazocine-2,9(6H)-dicarboxylate, 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"
    ]
}
```
