Using phosgene, (3S,4R)-6,7-diamino-2,2-dimethyl-4-(piperidin-1-yl)chroman-3-ol to produce (7S,8R)-7-hydroxy-6,6-dimethyl-8-(piperidin-1-yl)-3,6,7,8-tetrahydrochromeno[6,7-d]imidazol-2(1H)-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"
    ]
}
```
