Using COC(=O)c1ccc(NC(=O)N2C[C@H](CN(C(=O)OC(C)(C)C)[C@H](C)c3cccc4ccccc34)[C@@H](c3ccccc3)C2)c(OC)c1 to produce COc1cc(C(=O)O)ccc1NC(=O)N1C[C@H](CN(C(=O)OC(C)(C)C)[C@H](C)c2cccc3ccccc23)[C@@H](c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.