Using COc1ccc(N2NN(C3OCCO3)N=C2S(C)(=O)=O)cc1, O=C([O-])O to produce COc1ccc(-n2nnnc2S(C)(=O)=O)cc1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.