Using COc1ccccc1C1C(C(=O)C(C)(C)COC2CCCCO2)=C(O)C(=O)N1c1ccc(Br)cc1, NN to produce COc1ccccc1C1c2c(C(C)(C)CO)n[nH]c2C(=O)N1c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.