Using CCC[C@H](NC(=O)[C@@H]1C[C@H](O)C[C@H]1C(=O)OC)C(=O)OC(C)(C)C, COc1ccc2c(O)cc(-c3ccccc3)nc2c1 to produce CCC[C@H](NC(=O)[C@@H]1C[C@@H](Oc2cc(-c3ccccc3)nc3cc(OC)ccc23)C[C@H]1C(=O)OC)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.