Spiro[1,3-dihydronaphthalene-4,1'-cyclobutane]-2-one

(2R)-1-[2-cyclobutyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]piperidine-2-carboxylic acid

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

4-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methylpentanamido}-3-methylbutanoic acid

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

ethyl 1-methyl-4-(2-oxopropyl)-1H-pyrazole-3-carboxylate

3-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]methyl}-4-methylpentanoic acid

3-[(Ethenyloxy)methyl]-1-methyl-2(1H)-pyridinone

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{[(2R)-1-hydroxy-4-methylpentan-2-yl]carbamoyl}butanoic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbut-2-enoyl]-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid

rac-(3aR,6aR)-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxypropanoyl]-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid