Using COC(=O)Cc1ccc2nc(-c3cn(C)c4cc(F)ccc34)oc2c1 to produce Cn1cc(-c2nc3ccc(CC(=O)O)cc3o2)c2ccc(F)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.