Using COCCCOc1cc(C(=O)[C@@H](C[C@@H](COC(=O)OC(C)(C)C)NC(=O)C(C)(C)C)C(C)C)ccc1OC to produce COCCCOc1cc(C[C@@H](C[C@@H](COC(=O)OC(C)(C)C)NC(=O)C(C)(C)C)C(C)C)ccc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.