Using 6-acetyl-7-methyl-5-(2-methyl-4-oxo-4H-chromen-8-yl)-5,8-dihydropyrido[2,3-d]pyrimidin-4(3H)-one, triethyloxonium to produce 8-(6-acetyl-4-ethoxy-7-methyl-5,8-dihydropyrido[2,3-d]pyrimidin-5-yl)-2-methyl-4H-chromen-4-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"
    ]
}
```
