Using O=Cc1ccc([N+](=O)[O-])cc1, CC(=O)NCC(=O)O to produce CC1=NC(=Cc2ccc([N+](=O)[O-])cc2)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.