Using O=C(N[C@@H]1CCCC[C@H]1O)c1nc(-c2ccc(Cl)cc2)c(Br)nc1C(F)(F)F, [O-]CC1CC1 to produce O=C(N[C@@H]1CCCC[C@H]1O)c1nc(-c2ccc(Cl)cc2)c(OCC2CC2)nc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.