Using Nc1ccc(C(=O)Nc2ccc(C(=O)N3CCCCc4ccccc43)cc2)c(Cl)c1, CC(=O)OC(C)=O to produce CC(=O)Nc1ccc(C(=O)Nc2ccc(C(=O)N3CCCCc4ccccc43)cc2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.