Using C[C@@H](n1cc(-n2ccn(-c3ccc(Cl)cc3)c2=O)cn1)[C@](O)(Cn1cncn1)c1ccc(F)cc1F to produce C[C@@H](n1cc(N2CCN(c3ccc(Cl)cc3)C2=O)cn1)[C@](O)(Cn1cncn1)c1ccc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.