2-(5-methyl-1H-pyrazol-3-yl)acetaldehyde

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]phenyl}propanoic acid

2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-(1-hydroxycyclohexyl)acetic acid

tert-Butyl 5-amino-2-azaspiro[3.4]octane-2-carboxylate

tert-Butyl 3',4'-dihydro-2'H-spiro[azetidine-3,1'-pyrrolo[1,2-a]pyrazine]-1-carboxylate

2-(2-(tert-Butoxycarbonyl)-8-oxa-2-azaspiro[4.5]decan-3-yl)acetic acid

9-(tert-Butyl) 1-ethyl 4-oxo-3,9-diazaspiro[5.5]undecane-1,9-dicarboxylate

1-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)cyclopropane-1-carbonitrile

rac-(3'aR,6'aR)-1-[(tert-butoxy)carbonyl]-5'-{[(9H-fluoren-9-yl)methoxy]carbonyl}-hexahydrospiro[azetidine-3,1'-furo[3,4-c]pyrrole]-3'a-carboxylic acid

Tert-butyl 3-(3,3-difluorocycloprop-1-en-1-yl)azetidine-1-carboxylate

Tert-butyl 4-(3,3-difluorocyclopropen-1-yl)piperidine-1-carboxylate