Using COC(=O)CC(=O)OC, CCNC(=O)c1ccc(N=[N+]=[N-])cc1 to produce CCNC(=O)c1ccc(-n2nnc(C(=O)OC)c2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.