(S)-tert-Butyl 1-cyclopentylpyrrolidin-3-ylcarbamate

(R)-tert-Butyl 1-(cyclobutylmethyl)pyrrolidin-3-ylcarbamate

(S)-tert-Butyl 1-propionylpyrrolidin-3-ylcarbamate

(S)-tert-Butyl 1-(3-fluorobenzoyl)pyrrolidin-3-ylcarbamate

(R)-tert-Butyl 1-acetylpyrrolidin-3-ylcarbamate

(R)-(3-Aminopyrrolidin-1-yl)(phenyl)methanone hydrochloride

N-(Piperidine-4-yl)-1,3-propanesultam hydrochloride

Methyl 3-[(piperidin-4-ylamino)methyl]benzoate dihydrochloride

tert-Butyl 1-(3-bromobenzoyl)piperidin-4-ylcarbamate

Methyl 3-[4-(tert-butoxycarbonyl)amino-piperidine-1-carbonyl]benzoate

tert-Butyl 1-(4-chloro-2-fluorobenzyl)piperidin-4-ylcarbamate