Using O=C1C=C(S(=O)(=O)[O-])c2ccccc2C1=O, NNc1ccccn1 to produce O=S(=O)(O)c1cc(N=Nc2ccccn2)c(O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.