1-(N-(N-Benzoyl-L-phenylalanyl)-L-alanyl)-L-proline 69677-91-4 BPAAP Benzoyl-phe-ala-pro Benzoylphenylalanyl-alanyl-proline L-Proline, 1-(N-(N-benzoyl-L-phenylalanyl)-L-alanyl)-