Using tert-butyl (2S,3R)-2-(3-fluoropyridin-2-yl)-4-oxo-3-((triisopropylsilyl)oxy)azetidine-1-carboxylate, 4-bromobenzenethiol to produce S-(4-bromophenyl) (2R,3S)-3-((tert-butoxycarbonyl)amino)-3-(3-fluoropyridin-2-yl)-2-((triisopropylsilyl)oxy)propanethioate, 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"
    ]
}
```
