Boc-Protected Building Blocks

(3aR, 6aR)-Hexahydro-pyrrolo[3,4-b]pyrrole-1-carboxylic acid tert-butyl ester oxalate

tert-Butyl 2-ethynyl-7-azaspiro[3.5]nonane-7-carboxylate

1-(Boc-L-valyl)-(4R)-4-hydroxy-L-proline

(3R,4R)-3-Amino-1-Boc-4-hydroxypyrrolidine

Tert-butyl 3-Cyano-4-oxo-pyrrolidine-1-carboxylate

3-tert-Butyl 4-methyl (4S)-2,2-dimethyl-1,3-oxazolidine-3,4-dicarboxylate

tert-butyl 3-amino-6,6-dimethyl-1H,4H,5H,6H-pyrrolo(3,4-c)pyrazole-5-carboxylate

Tert-butyl 2-(hydroxymethyl)-7-azaspiro[3.5]nonane-7-carboxylate

tert-butyl N-[(2S)-1-hydroxy-3-methylbutan-2-yl]carbamate

rac-tert-butyl (1R,3S,5S)-3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate

Tert-butyl 2-oxo-6-azaspiro[3.5]nonane-6-carboxylate

(S)-tert-Butyl (pyrrolidin-2-ylmethyl)carbamate

1-((Tert-butoxy)carbonyl)-3-methylazetidine-3-carboxylic acid

4-(tert-Butoxycarbonylaminomethyl)phenylboronic acid, pinacol ester

1-Piperidinecarboxylic acid, 3,3-difluoro-4-(hydroxymethyl)-, 1,1-dimethylethyl ester

tert-Butyl 3,7-diazabicyclo[4.2.0]octane-7-carboxylate

Tert-butyl 2-(2-hydroxyethyl)-7-azaspiro[3.5]nonane-7-carboxylate

(2S)-2-(Tert-butoxycarbonylamino)-3-(3,3-difluorocyclobutyl)propanoic acid

Boc-L-lys(ipr,Z)-OH

Tert-butyl 8-hydroxy-5-thia-2-azaspiro[3.4]octane-2-carboxylate