Using O=C1CCC(=O)N1, C[C@@H](Cn1ccc(-c2ccc(C#N)c(Cl)c2)n1)NC(=O)c1coc(CCl)n1 to produce C[C@@H](Cn1ccc(-c2ccc(C#N)c(Cl)c2)n1)NC(=O)c1coc(CN2C(=O)CCC2=O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.