Using O=C1NC(=O)c2ccccc21, C[C@@H]1CCN(C(=O)OC(C)(C)C)C[C@H]1O to produce C[C@@H]1CCN(C(=O)OC(C)(C)C)C[C@@H]1N1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.