Using (3'R,4'S,5'S,6'R,7S)-3',4',5'-tris(benzyloxy)-6'-((benzyloxy)methyl)-1-(4-ethylbenzyl)-1,3',4',5,5',6'-hexahydrospiro[furo[3,4-f]indole-7,2'-pyran] to produce (3'R,4'S,5'S,6'R,7S)-1-(4-ethylbenzyl)-6'-(hydroxymethyl)-1,3',4',5,5',6'-hexahydrospiro[furo[3,4-f]indole-7,2'-pyran]-3',4',5'-triol, 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"
    ]
}
```
