Using OB(O)C1CC1, CC(C)(C)OC(=O)N1CCOc2c(Br)cccc2C1 to produce CC(C)(C)OC(=O)N1CCOc2c(cccc2C2CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.