Using CN(C)CC(c1ccc(O)cc1)C1(O)CCCCC1, CC(C)(C)C(=O)OCCl to produce CN(C)CC(c1ccc(OCOC(=O)C(C)(C)C)cc1)C1(O)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.