Using (R)-10-amino-8-(5-bromo-2-fluorophenyl)-8-methyl-6-thia-9-azaspiro[4.5]deca-2,9-diene 6,6-dioxide to produce (R)-10-amino-8-(2-fluorophenyl)-8-methyl-6-thia-9-azaspiro[4.5]dec-9-ene 6,6-dioxide, 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"
    ]
}
```
