Using COc1cc(O)ccc1[C@H](CO)NC(=O)OC(C)(C)C, CCC(CC)CBr to produce CCC(CC)COc1ccc([C@H](CO)NC(=O)OC(C)(C)C)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.