tert-butyl (2R)-2-methyl-5-nitro-2,3-dihydro-1H-indole-1-carboxylate

1'-{[(9H-fluoren-9-yl)methoxy]carbonyl}-8-methyl-8-azaspiro[bicyclo[3.2.1]octane-3,3'-pyrrolidine]-4'-carboxylic acid

1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-(1-methyl-1H-pyrazol-4-yl)pyrrolidine-3-carboxylic acid

rac-4-ethyl-1-[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl]piperidine-2-carboxylic acid

rac-(3R,4S)-1-[(benzyloxy)carbonyl]-4-(4-cyclopropylphenyl)pyrrolidine-3-carboxylic acid

rac-(3R,4S)-1-[(benzyloxy)carbonyl]-4-(4-bromo-2-methylphenyl)pyrrolidine-3-carboxylic acid

Tert-butyl 2-(3,3,5,5-tetramethylcyclohexylidene)acetate

tert-butyl 2-[(3Z)-2-methylthiolan-3-ylidene]acetate

Tert-butyl 2-[4-(propan-2-yl)cyclohexylidene]acetate

tert-butyl (3Z)-3-[2-(tert-butoxy)-2-oxoethylidene]pyrrolidine-1-carboxylate

tert-butyl 2-[(3Z)-oxan-3-ylidene]acetate