Using COc1ccc(COC(=O)N=[N+]=[N-])cc1, C=C(CCCN)C(=O)O to produce C=C(CCCNC(=O)OCc1ccc(OC)cc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.