Using CC(=O)N1CCc2cc(OCC3=CC4CCCN4CC3)c(Br)cc21 to produce CC(=O)N1CCc2cc3c(cc21)C1(CCN2CCCC2C1)CO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.