1,2,3,6-Tetrahydro-3-methyl-4-(nitromethyl)-1-(phenylmethyl)pyridine

(4R)-3-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentanecarbonyl}-1,3-thiazolidine-4-carboxylic acid

2-(1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopentyl}-N-(prop-2-yn-1-yl)formamido)acetic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pent-4-ynamido]benzoic acid

3-{[2-(cyclohexyloxy)ethyl]carbamoyl}-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

3-[(2,3-dihydro-1-benzofuran-3-yl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-[(1,1-dioxo-1lambda6-thian-4-yl)carbamoyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

4-[cyclopropyl(3-methylbutyl)carbamoyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[pentyl(propan-2-yl)carbamoyl]butanoic acid

4-({4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}carbamoyl)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

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