(5S)-5-(aminomethyl)-1-methylpyrrolidin-2-one

(5S)-5-(aminomethyl)-4-methylmorpholin-3-one

(5S)-5-(aminomethyl)pyrrolidin-2-one

(5S)-5-(azidomethyl)-3,3-dimethylpyrrolidin-2-one

(5S)-5-(azidomethyl)-4-methylmorpholin-3-one

(5S)-5-(bromomethyl)-1,3-oxazolidin-2-one

(5S)-5-(bromomethyl)-1-methylpyrrolidin-2-one

(5S)-5-(bromomethyl)-3-methyl-1,3-oxazolidin-2-one

(5S)-5-(bromomethyl)-4-methylmorpholin-3-one

(5S)-5-(bromomethyl)-5H,6H,7H-pyrrolo[1,2-a]imidazole hydrobromide

(5S)-5-(bromomethyl)pyrrolidin-2-one

(5S)-5-(difluoromethyl)pyrrolidin-2-one

(5S)-5-(hydroxymethyl)-1,3-oxazolidin-2-one

(5S)-5-(hydroxymethyl)-1-methylpyrrolidin-2-one

(5S)-5-(hydroxymethyl)-3-methyl-1,3-oxazolidin-2-one

(5S)-5-(hydroxymethyl)-4-methylmorpholin-3-one

(5S)-5-(hydroxymethyl)imidazolidine-2,4-dione

(5S)-5-(hydroxymethyl)pyrrolidin-2-one

(5S)-5-(propan-2-yl)pyrrolidin-2-one

(5S)-5-(trifluoromethyl)pyrrolidin-2-one

(5S)-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5,6,7,8-tetrahydronaphthalene-1-carboxylic acid

(5S)-5-amino-5,6,7,8-tetrahydronaphthalen-1-ol hydrochloride

(5S)-5-amino-5,6,7,8-tetrahydronaphthalene-1-carboxylic acid hydrochloride

(5S)-5-aminohexanoic acid hydrochloride

(5S)-5-aminopiperidin-2-one dihydrochloride

(5S)-5-aminopiperidin-2-one hydrochloride

(5S)-5-benzylmorpholin-3-one

(5S)-5-cyclobutylpyrrolidin-2-one

(5S)-5-cyclopropyl-5-methylimidazolidine-2,4-dione

(5S)-5-cyclopropyl-5-{3-[(3S)-4-(3,5-difluorophenyl)-3-methylpiperazin-1-yl]-3-oxopropyl}imidazolidine-2,4-dione

(5S)-5-ethyl-5-phenylimidazolidine-2,4-dione

(5S)-5-ethylimidazolidine-2,4-dione

(5S)-5-ethylpyrrolidin-2-one

(5S)-5-hydroxy-2,3,4,5-tetrahydro-1lambda6-benzothiepine-1,1-dione

(5S)-5-methyl-1,3-oxazolidine

(5S)-5-methyl-1,3-thiazolidine

(5S)-5-methyl-1,4-diazepane dihydrochloride

(5S)-5-methyl-1,4-oxazepane hydrochloride

(5S)-5-methyl-5-phenylimidazolidine-2,4-dione

(5S)-5-methyl-7-oxa-4-azaspiro[2.5]octane hydrochloride

(5S)-5-methylmorpholin-3-one

(5S)-5-methyloxolan-2-one

(5S)-5-methylpyrrolidin-2-one

(5S)-5-methylpyrrolidin-3-one hydrochloride

(5S)-5-methylthiomorpholin-3-one