Using Cc1c(Br)c2c(c(C)c1NC=O)C(c1ccc(C(C)C)cc1)CO2, OB(O)c1ccccc1 to produce Cc1c(NC=O)c(C)c2c(c1-c1ccccc1)OCC2c1ccc(C(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.