Using COC(=O)[C@](C)(Cc1cccc(OCC(=O)c2ccccc2)c1)NC(=O)OC(C)(C)C, NCc1ccccc1 to produce COC(=O)[C@](C)(Cc1cccc(OCC(NCc2ccccc2)c2ccccc2)c1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.