135219-43-1

poststatin L-Val-L-Val-[(3S)-2-Oxo-3-amino*pentanoyl]-D-Leu-L-Val-OH L-Valine, L-valyl-L-valyl-(3S)-3-amino-2-oxopentanoyl-D-leucyl- N-[N-[(S)-3-[(N-L-Valyl-L-valyl)amino]-1,2-dioxopentyl]-D-leucyl]-L-valine