Using COC(=O)c1cnc(OC2CCN(c3ccc(C(F)(F)F)cc3)CC2)cn1 to produce O=C(O)c1cnc(OC2CCN(c3ccc(C(F)(F)F)cc3)CC2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.