Using O=[N+]([O-])c1cccc2c3c([nH]c12)CCNC3, CCOC(=O)Cl to produce CCOC(=O)N1CCc2[nH]c3c([N+](=O)[O-])cccc3c2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.