Using O=C(NC(=O)c1c(Cl)cccc1Cl)Nc1ccc(Cl)cc1, O=C(Cl)C(=O)Cl to produce O=C1CN(c2ccc(Cl)cc2)C(=O)N1C(=O)c1c(Cl)cccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.