Using (2S,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzofuran-5-yl)methyl)phenyl)-6-methoxytetrahydro-2H-pyran-2-carbaldehyde, formaldehyde to produce (2S,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-6-(4-chloro-3-((2,3-dihydrobenzofuran-5-yl)methyl)phenyl)-2-(hydroxymethyl)-6-methoxytetrahydro-2H-pyran-2-carbaldehyde, 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"
    ]
}
```
