Using CC1(O)CN(C(=O)OC(C)(C)C)C1, Oc1cc(Br)ccc1OCc1cccc(Cl)c1 to produce CC(C)(C)OC(=O)N1CC(O)(COc2cc(Br)ccc2OCc2cccc(Cl)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.