Using (S)-4,6-dichloro-N-(1-(4-fluorophenyl)ethyl)pyrimidin-2-amine, pyrazin-2-amine to produce (S)-6-chloro-N2-(1-(4-fluorophenyl)ethyl)-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine, 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"
    ]
}
```
