Using ethanethioic O-acid, (1S,3aS,3bS,5aS,6aS,7aR,8aS,8bS,10aS)-1-acetyl-8a,10a-dimethylhexadecahydro-9H-cyclopenta[7,8]phenanthro[2,3-b]oxiren-9-one to produce S-((2S,3S,5S,8S,9S,10S,13S,14S,17S)-17-acetyl-3-hydroxy-10,13-dimethyl-11-oxohexadecahydro-1H-cyclopenta[a]phenanthren-2-yl) ethanethioate, 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"
    ]
}
```
