Using O=C([O-])[O-], Cc1c(-n2nn[nH]c2=O)cccc1C(F)(F)F to produce Cc1c(-n2nnn(C)c2=O)cccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.