Using O=S(=O)(O)O, CC(=O)NC(=O)c1ccc2c(c1)N(Cc1ccc(Cl)cc1Cl)C(C)=NC2 to produce CC1=NCc2ccc(C(=O)O)cc2N1Cc1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.