Using O=C(O)CCc1cccc(-c2ncn(-c3ccc(OC(F)(F)F)cc3)n2)c1 to produce OCCCc1cccc(-c2ncn(-c3ccc(OC(F)(F)F)cc3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.