Using O=C1CCC(c2ccc(S(=O)(=O)CCCN3C(=O)c4ccccc4C3=O)cc2)=NN1 to produce NCCCS(=O)(=O)c1ccc(C2=NNC(=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.