Using Oc1ccc([C@H]2CC[C@H](O)CC2)cc1, COc1ccc(CBr)cc1 to produce COc1ccc(COc2ccc([C@H]3CC[C@H](O)CC3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.