tert-butyl 3-(-lambda5-diazynylidene)-4-oxopiperidine-1-car boxylate

tert-butyl 3-(5-amino-1H-pyrazol-1-yl)piperidine-1-carboxyla te tert-butyl 3-(5-formyl-1,3-oxazol-2-yl)azetidine-1-carboxylate tert-butyl 3-(1-aminopropan-2-yl)-3-hydroxypyrrolidine-1-car boxylate tert-butyl 3-(4-hydroxypiperidin-1-yl)azetidine-1-carboxylate hydrochloride tert-butyl 3-(3-hydroxy-2-methylpropyl)azetidine-1-carboxyl ate

tert-butyl 3-(sulfanylmethyl)azetidine-1-carboxylate tert-butyl 3-(2-aminoethyl)-8-azabicyclo[3.2.1]octane-8-carb oxylate tert-butyl 2-oxo-3-(2,2,2-trifluoroacetyl)pyrrolidine-1-carbox ylate 1-Piperidinecarboxylic acid, 3,3-difluoro-4-hydroxy-, 1,1-diMethylethyl ester tert-butyl 2-imino-2-oxo-2lambda6-thia-7-azaspiro[4.5]deca ne-7-carboxylate

8-boc-8-azabicyclo[3.2.1]octan-2-amine tert-butyl 2-hydroxy-7-azaspiro[3.5]nonane-7-carboxylate