Using O=C(O)c1ccc(Sc2ccc([N+](=O)[O-])c(Cl)c2F)cc1, CCNC to produce CCN(C)C(=O)c1ccc(Sc2ccc([N+](=O)[O-])c(Cl)c2F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.