Using CCOC(=O)C(=CN[C@@H](C)COC(C)=O)C(=O)c1cc(F)c(Cl)c([N+](=O)[O-])c1Cl to produce CCOC(=O)c1cn([C@@H](C)COC(C)=O)c2c([N+](=O)[O-])c(Cl)c(F)cc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.