Using O=C(O)[C@H]1CC[C@H](Nc2cc(-n3c(C(F)F)nc4ccccc43)nc(N3CCOCC3)n2)CC1, CN1CCOCC1 to produce NC(=O)[C@H]1CC[C@H](Nc2cc(-n3c(C(F)F)nc4ccccc43)nc(N3CCOCC3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.