Using ethyl (1-hydroxy-3-mesityl-8-methoxy-2-oxo-1,8-diazaspiro[4.5]dec-3-en-4-yl) carbonate, methyl carbonochloridate to produce ethyl (3-mesityl-8-methoxy-2-oxo-1,8-diazaspiro[4.5]dec-3-ene-1,4-diyl) methyl bis(carbonate), 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"
    ]
}
```
