Using O=c1c(Br)c(O)ccn1Cc1cccc(F)c1, Fc1ccc(CBr)c(F)c1 to produce O=c1c(Br)c(OCc2ccc(F)cc2F)ccn1Cc1cccc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.