Using OCc1ccc(F)s1, Cc1c(C2CC2)nc2ccc(-n3ccc(Br)cc3=O)cn12 to produce Cc1c(C2CC2)nc2ccc(-n3ccc(OCc4ccc(F)s4)cc3=O)cn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.