Using COC(=O)c1cc(Br)cc(OC2CCN(C(=O)OC(C)(C)C)CC2)c1 to produce CC(C)(C)OC(=O)N1CCC(Oc2cc(Br)cc(CO)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.