Using 4-nitrobenzyl 2-(2-(((benzyloxy)carbonyl)thio)-4-oxo-3-(2-phenoxyacetamido)azetidin-1-yl)-4-bromo-3-hydroxybut-2-enoate to produce 4-nitrobenzyl 4-bromo-3-hydroxy-2-(2-mercapto-4-oxo-3-(2-phenoxyacetamido)azetidin-1-yl)but-2-enoate, 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"
    ]
}
```
