1-(4-Methoxyphenyl)-3-[3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl]urea

(1R,7S)-3-(4-nitrobenzenesulfonyl)-1-phenyl-3-azabicyclo[5.1.0]octane-7-carbaldehyde

(1R,6R,7S)-3-(4-nitrobenzenesulfonyl)-7-phenyl-3-azabicyclo[4.1.0]heptane-6-carbaldehyde

(1S,6S)-1-bromo-3-(4-methylbenzenesulfonyl)-3-azabicyclo[4.1.0]heptane-6-carbaldehyde

methyl N-{5'-nitro-1',2'-dihydrospiro[cyclopentane-1,3'-indol]-2'-ylidene}sulfamate

3-(Aminomethyl)-3-(2-bromo-3-methoxyphenyl)cyclobutan-1-ol

Ethyl 2-amino-4-fluoro-5-[(2-hydroxyethyl)amino]benzoate

1-[(tert-butoxy)carbonyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}(3,3,3-trifluoropropyl)amino)piperidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-{[2-(2,2-difluorocyclopropyl)ethyl]({[(9H-fluoren-9-yl)methoxy]carbonyl})amino}piperidine-4-carboxylic acid

3-{[(tert-butoxy)carbonyl]amino}-1-({[(9H-fluoren-9-yl)methoxy]carbonyl}[(oxan-4-yl)methyl]amino)cyclobutane-1-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}(methyl)amino)piperidine-4-carboxylic acid