Using COC(=O)c1sc2ncnc(Nc3ccc(F)cc3O)c2c1C, BrCC1CCOCC1 to produce COC(=O)c1sc2ncnc(Nc3ccc(F)cc3OCC3CCOCC3)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.