Using C=C(C=O)c1ccc(Cl)cc1[N+](=O)[O-], CCOC(=O)C(NC(C)=O)C(=O)OCC to produce CCOC(=O)C1(C(=O)OCC)CC(c2ccc(Cl)cc2[N+](=O)[O-])=CN1C(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.