Using C[C@@H](SC(CO)CO)[C@](O)(Cn1cncn1)c1ccc(F)cc1F, O=Cc1ccc(C(=O)Nc2ccc(F)cc2)cc1 to produce C[C@@H](S[C@H]1CO[C@H](c2ccc(C(=O)Nc3ccc(F)cc3)cc2)OC1)[C@](O)(Cn1cncn1)c1ccc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.