Mal-Val-Ala-PAB-4-Abu(Me)-Dazostinag 

2553413-19-5

4-((S)-2-((S)-2-(6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanamido)-3-methylbutanamido)propanamido)benzyl (4-((9-((2R,5R,7R,8R,10R,12aR,14R,15R,15aR,16R)-15-fluoro-7-(5-fluoro-4-oxo-1,4-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-16-hydroxy-2,10-dimercapto-2,10-dioxidooctahydro-12H-5,8-methanofuro[3,2-l][1,3,6,9,11]pentaoxa[2,10]diphosphacyclotetradecin-14-yl)-9H-purin-6-yl)amino)-4-oxobutyl)(methyl)carbamate;