tert-Butyl 1-(ethylcarbamoyl)piperidin-4-ylcarbamate

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

(S)-tert-Butyl 1-(2-fluorobenzyl)pyrrolidin-3-ylcarbamate

(S)-tert-Butyl 1-(tetrahydro-2H-pyran-4-yl)pyrrolidin-3-ylcarbamate

(R)-tert-Butyl 1-isobutylpyrrolidin-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