Using O=C(Cl)c1ccco1, O=C(NC(=O)N1C(=O)Cc2ccccc21)c1ccccc1 to produce O=C(NC(=O)N1C(=O)C(C(=O)c2ccco2)c2ccccc21)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.