Using CCOC(=O)C(Cc1ccc(O)c(Br)c1)Oc1ccccc1, CC(C)(C)OC(=O)NCCO to produce CCOC(=O)C(Cc1ccc(OCCNC(=O)OC(C)(C)C)c(Br)c1)Oc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.