Using tert-butyl 4-(4-((2-(4-(methoxycarbonyl)phenyl)-5-oxo-5,6-dihydropyrimido[4,5-d]pyridazin-4-yl)amino)benzyl)piperazine-1-carboxylate to produce methyl 4-(5-oxo-4-((4-(piperazin-1-ylmethyl)phenyl)amino)-5,6-dihydropyrimido[4,5-d]pyridazin-2-yl)benzoate, 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"
    ]
}
```
