Using O=[N+]([O-])c1ccc(C2=NN=C(CO)Cc3cc4c(cc32)OCO4)cc1, [N-]=[N+]=N to produce [N-]=[N+]=NCC1=NN=C(c2ccc([N+](=O)[O-])cc2)c2cc3c(cc2C1)OCO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.