Using CC(C)(C)C(O)C(C)(C)C, CC1CN1C(=O)OCc1ccccc1 to produce CC(COC(C(C)(C)C)C(C)(C)C)NC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.