Using COCCCOc1ccccc1C(=O)NC[C@@H](C[C@H](NC(=O)OC(C)(C)C)[C@@H]1CO1)C(C)C, O=C1CCCCN1 to produce COCCCOc1ccccc1C(=O)NC[C@@H](C[C@@H]1NC(=O)O[C@H]1CN1CCCCC1=O)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.