Using NC(=O)c1cc(Oc2cc(F)c(NC(=O)C3(C(=O)O)CC3)cc2F)ccn1, Nc1ccc(F)cc1 to produce NC(=O)c1cc(Oc2cc(F)c(NC(=O)C3(C(=O)Nc4ccc(F)cc4)CC3)cc2F)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.