Using CCCCCOc1c(OC)ccc(C(=O)NCCc2ccc([N+](=O)[O-])cc2)c1[N+](=O)[O-], CCOC(=O)CBr to produce CCCCCOc1c(OC)ccc(C(=O)N(CCc2ccc([N+](=O)[O-])cc2)CC(=O)OCC)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.