Using COC(C)(C)OC, OC[C@@H](O)CCc1cc(-c2ccccc2)n[nH]1 to produce CC1(C)OC[C@H](CCc2cc(-c3ccccc3)n[nH]2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.