Using N-(((3R,4S)-4-(4-bromothiophen-2-yl)-3-(hydroxymethyl)tetrahydro-2H-pyran-4-yl)carbamothioyl)benzamide to produce N-((4aS,8aS)-8a-(4-bromothiophen-2-yl)-4a,7,8,8a-tetrahydro-4H,5H-pyrano[4,3-d][1,3]thiazin-2-yl)benzamide, 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"
    ]
}
```
