9-(3-hydroxypropyl)-6-methyl-2,3,9,10-tetrahydro-8H-cyclopenta[3,4]chromeno[6,7-e][1,3]oxazin-4(1H)-one

2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]formamido}pent-4-ynoic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]methyl}-4-methyl-1,3-thiazole-5-carboxylic acid

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

2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]methyl}cyclopentane-1-carboxylic acid

4-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetamido}-3-methylbenzoic acid

1-[(2S,3S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]-3-methylpyrrolidine-3-carboxylic acid

3-cyclopropyl-3-[(2S,3S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]propanoic acid

2-[(2-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1H-1,2,4-triazol-3-yl]formamido}ethyl)sulfanyl]acetic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoyl]-3-(propan-2-yl)pyrrolidine-3-carboxylic acid

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