(S)-2-((S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-4-methylpentanoic acid

(S)-2-((S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-4-methylpentanoic acid,