Using CN(CC(O)[C@H](Cc1ccccc1)NC(=O)c1ccccc1)C(=O)N1CCC[C@H]1C(=O)O, OCc1cccnc1 to produce CN(CC(O)[C@H](Cc1ccccc1)NC(=O)c1ccccc1)C(=O)N1CCC[C@H]1C(=O)OCc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.