Using BrCCc1ccccc1, O=C1CCC(C2CCC3(CC2)OCCO3)CC1 to produce CCc1ccc([C@H]2CC[C@H](C3CCC4(CC3)OCCO4)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.