Using CC(=O)Nc1cccc(-c2cncc(Cl)n2)c1, Nc1ccc(S(=O)(=O)N2CCOCC2)cc1 to produce CC(=O)Nc1cccc(-c2cncc(Nc3ccc(S(=O)(=O)N4CCOCC4)cc3)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.