Using O=C(O)C(=O)O, NC1C(C(F)(F)F)=CC(C(F)(F)F)=CC1(N)N to produce O=c1[nH]c2cc(C(F)(F)F)cc(C(F)(F)F)c2[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.