Using CCCN1C(=O)C(O)c2ccccc21, O=C(Cl)c1ccccc1 to produce CCCN1C(=O)C(OC(=O)c2ccccc2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.