Using CC(=O)OC(C)=O, COc1ccc(CC(C(O)CCC(C#N)(c2ccc(OC)c(OC)c2)C(C)C)[N+](=O)[O-])cc1OC to produce COc1ccc(CC(C(CCC(C#N)(c2ccc(OC)c(OC)c2)C(C)C)OC(C)=O)[N+](=O)[O-])cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.