Using 4-((((4-nitrobenzyl)oxy)carbonyl)amino)butanethioate, (3S,4R)-4-chloro-3-methoxyazetidin-2-one to produce S-((2R,3S)-3-methoxy-4-oxoazetidin-2-yl) 4-((((4-nitrobenzyl)oxy)carbonyl)amino)butanethioate, 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"
    ]
}
```
