Using COc1cc(CCN)ccc1O, CC1(C)OC(=O)C(c2ccc(Br)cc2)O1 to produce COc1cc(CCNC(=O)C(O)c2ccc(Br)cc2)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.