Using CCOC(=O)[C@@H]1OC(C)(C)N(C(=O)OC(C)(C)C)[C@H]1c1ccc(C)cc1 to produce Cc1ccc([C@H]2[C@H](C(=O)O)OC(C)(C)N2C(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.