Using 7-hydroxybenzo[b]thiophene-6-carboxylic acid, methyl 2-amino-2-methylpropanoate to produce methyl 2-(7-hydroxybenzo[b]thiophene-6-carboxamido)-2-methylpropanoate, 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"
    ]
}
```
