Using CCOC(=O)[C@H](C[C@H](Cc1ccc2cnn(CCCOC)c2c1)C(C)C)NC(=O)OC(C)(C)C to produce COCCCn1ncc2ccc(C[C@@H](C[C@@H](CO)NC(=O)OC(C)(C)C)C(C)C)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.