Using NC(=O)CN1C(=O)Cc2c(Cl)cccc21, O=C1CCC(=O)N1Cl to produce NC(=O)CN1C(=O)Cc2c1ccc(Cl)c2Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.