(3R,4S,5S)-4-((S)-2-((S)-2-(dimethylamino)-3-methylbutanamido)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoic acid

(3R,4S,5S)-4--3-methoxy-5-methylheptanoic acid

Cbz-MeVal-Val-Dil-OtBu