Using carbonate, tert-butyl ((8R,9S)-8-hydroxy-7,7-dimethyl-3-oxo-2,3,4,7,8,9-hexahydrochromeno[6,7-b][1,4]oxazin-9-yl)(phenethyl)carbamate to produce tert-butyl ((8R,9S)-8-hydroxy-4,7,7-trimethyl-3-oxo-2,3,4,7,8,9-hexahydrochromeno[6,7-b][1,4]oxazin-9-yl)(phenethyl)carbamate, 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"
    ]
}
```
