Using COC(=O)[C@@H](O)Cc1cccc(O)c1, CC(C)(C)C(=O)Cl to produce COC(=O)[C@@H](O)Cc1cccc(OC(=O)C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.