Using O=C1CCC(=O)N1O, CC(C)Cn1ncc2cc(Oc3ccc(F)cc3F)c(C(=O)O)cc21 to produce CC(C)Cn1ncc2cc(Oc3ccc(F)cc3F)c(C(=O)ON3C(=O)CCC3=O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.