Using (S)-2-hydroxy-2-(6-(hydroxymethyl)-5-oxo-2,3-dihydro-5H-spiro[indolizine-1,2'-[1,3]dioxolan]-7-yl)-N-((R)-1-phenylethyl)butanamide to produce (S)-4-ethyl-4-hydroxy-7,8-dihydro-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione, 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"
    ]
}
```
