Using aceticanhydride, (8S,9R,10S,13S,14S)-17-(2-hydroxy-1-nitroethyl)-10,13-dimethyl-1,4,7,8,10,11,12,13,14,15-decahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-9(2H)-ol to produce 2-((8S,9R,10S,13S,14S)-9-hydroxy-10,13-dimethyl-1,2,4,7,8,9,10,11,12,13,14,15-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-yl)-2-nitroethyl acetate, 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"
    ]
}
```
