Using COC(=O)C(C)Br, CCOCC(=O)Nc1c(C)ccc([N+](=O)[O-])c1C to produce CCOCC(=O)N(c1c(C)ccc([N+](=O)[O-])c1C)C(C)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.