Using COCCn1c(-c2ccc(C(C)C)cc2)nc2c(Br)c(I)cc(OC)c21, OB(O)c1ccccc1 to produce COCCn1c(-c2ccc(C(C)C)cc2)nc2c(Br)c(-c3ccccc3)cc(OC)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.