Using O=C(O)c1cc2ccccc2c(-c2cccc(Cl)c2)n1, CCN(CC)CC to produce CCN(CC)C(=O)c1cc2ccccc2c(-c2cccc(Cl)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.