Using N=C(N)c1ccc(CN2CCN(S(=O)(=O)C3=Cc4ccc(Cl)cc4OC3)CC2=O)cc1, COC(=O)Cl to produce COC(=O)NC(=N)c1ccc(CN2CCN(S(=O)(=O)C3=Cc4ccc(Cl)cc4OC3)CC2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.