Using C[C@@](CO)(C[C@H](N)Cc1ccc(-c2ccccc2)cc1)C(=O)O, CCO to produce CCOC(=O)[C@](C)(CO)C[C@H](N)Cc1ccc(-c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.