Using 5-hydroxy-2,6,7-trimethyl-4-(2-methylallyl)indoline-1-carbaldehyde to produce 2,2,4,5,7-pentamethyl-1,6,7,8-tetrahydro-2H-furo[3,2-e]indole, 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"
    ]
}
```
