Using tert-butyl (2R,4S)-4-((3,5-bis(trifluoromethyl)benzyl)(5-((E)-3-methoxy-3-oxoprop-1-en-1-yl)pyrimidin-2-yl)amino)-2-ethylpyrrolidine-1-carboxylate to produce tert-butyl (2R,4S)-4-((3,5-bis(trifluoromethyl)benzyl)(5-(3-methoxy-3-oxopropyl)pyrimidin-2-yl)amino)-2-ethylpyrrolidine-1-carboxylate, 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"
    ]
}
```
