Using CCN1C(=O)c2cnc(-c3ccccc3)nc2Nc2ccccc21, O=C(Cl)CCl to produce CCN1C(=O)c2cnc(-c3ccccc3)nc2N(C(=O)CCl)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.