3-[(2-Methylpropyl)(2-thienylmethyl)amino]propanenitrile

3-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-2,2-difluoropropanoic acid

(2R)-2-{[(1RS,5SR)-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-4-(methylsulfanyl)butanoic acid

(2S)-2-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-3-hydroxypropanoic acid

(2R,3S)-3-(benzyloxy)-2-{[(1RS,5SR)-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}butanoic acid

(2R)-2-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-3-hydroxypropanoic acid

(2S)-3-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-2-hydroxypropanoic acid

4-ethyl-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]cyclohexane-1-carboxylic acid

1-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]methyl}cycloheptane-1-carboxylic acid

2-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylbut-2-ynamido]cyclohexyl}acetic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]-4,5-difluorobenzoic acid