Using O=C(O)Cc1ccc(Nc2cc(C3=CCCC3)nc(C(F)(F)F)c2)cc1 to produce O=C(O)Cc1ccc(Nc2cc(C3CCCC3)nc(C(F)(F)F)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.