α-Methyl-ω-[(tetrahydro-2-furanyl)methoxy]-poly[oxy (methyl-1,2-ethanediyl)]

(3S)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]-4-methylpentanoic acid

(3S)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]-4-methylpentanoic acid

(3S)-3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]-4-methylpentanoic acid

(2S)-2-{[(1RS,2SR)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclohexyl]formamido}-3-hydroxypropanoic acid

rac-(1R,2S)-2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]methyl}cyclohexane-1-carboxylic acid

2-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-5,5-dimethylhexanoic acid

6-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]-4-ethylhexanoic acid

2-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]methyl}-4,4-dimethylpentanoic acid

3-cyclobutyl-3-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2-oxazol-3-yl]formamido}propanoic acid

3-cyclobutyl-3-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]propanoic acid