Using C=C(C)CO[C@@H]1[C@@H](Cc2ccccc2)COC[C@H](N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)C(=O)O[C@H]1C to produce CC(C)CO[C@@H]1[C@@H](Cc2ccccc2)COC[C@H](N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)C(=O)O[C@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.