(5R)-5-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2,5-dihydrofuran-2-one

(5R)-5-[(1S)-2-amino-1-hydroxyethyl]-3,4-dihydroxy-2,5-dihydrofuran-2-one hydrochloride

(5R)-5-{[(tert-butoxy)carbonyl]amino}-5,6,7,8-tetrahydronaphthalene-1-carboxylic acid

(5R)-5-{[(tert-butoxy)carbonyl]amino}-6,6-difluorohexanoic acid

(5R)-5-{[(tert-butoxy)carbonyl]amino}-6-methylheptanoic acid

(5R)-5-{[(tert-butoxy)carbonyl]amino}hexanoic acid

(5R)-5-{[(tert-butyldimethylsilyl)oxy]methyl}-3,3-dimethylpyrrolidin-2-one

(5R)-7-tert-butyl-2,3,4,5-tetrahydro-1-benzoxepin-5-ol

(5R)-9-fluoro-2,3,4,5-tetrahydro-1-benzoxepin-5-ol

(5R,6S)-2,2-dimethyl-1,3-dioxepane-5,6-diamine

(5R,6S)-5-methyl-6-(propan-2-yl)oxane-2,4-dione

(5R,6S)-6-ethyl-5-methyloxane-2,4-dione

(5r,8r)-1-azaspiro[4.5]decane-8-carboxylic acid hydrochloride

(5r,8r)-2,4-dioxo-1,3-diazaspiro[4.5]decane-8-carboxylic acid

(5r,8r)-3-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decane-8-carboxylic acid

(5r,8r)-3-oxo-2-azaspiro[4.5]decane-8-carboxylic acid

(5r,8r)-8-amino-1-azaspiro[4.5]decan-2-one; trifluoroacetic acid

(5RS,6SR)-2,2-dimethyl-6-{[(1S)-1-phenylethyl]amino}-1,3-dioxepan-5-ol

(5S)-1,5-dimethylpiperazin-2-one

(5S)-1-azabicyclo[3.1.0]hexane

(5S)-1-azabicyclo[3.2.0]heptane-2,6-dione

(5S)-1-methyl-5-(pyridin-3-yl)pyrrolidin-2-one

(5S)-2,2,5-trimethylmorpholine

(5S)-2,2-difluoro-5-methylmorpholine hydrochloride

(5S)-2,3,4,5-tetrahydro-1-benzothiepin-5-ol

(5S)-2,3,4,5-tetrahydro-1-benzoxepin-5-ol

(5S)-2,3-dimethyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one

(5S)-2,5-dimethylmorpholine

(5S)-2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one

(5S)-2-methylidene-5-(prop-1-en-2-yl)cyclohexan-1-ol

(5S)-2-oxo-1,3-oxazolidine-5-carboxylic acid

(5S)-3,3,5-trimethylpyrrolidin-2-one

(5S)-3,5-dimethylimidazolidine-2,4-dione

(5S)-3-(4-ethoxyphenyl)-5-[(1H-indol-3-yl)methyl]imidazolidine-2,4-dione

(5S)-5,6,7,8-tetrahydroisoquinolin-5-amine dihydrochloride

(5S)-5,6,7,8-tetrahydroquinolin-5-amine dihydrochloride

(5S)-5,6,7,8-tetrahydroquinolin-5-ol

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

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

(5S)-5-(2-aminoethyl)pyrrolidin-2-one hydrochloride

(5S)-5-(2-methylpropyl)morpholin-3-one

(5S)-5-(3,5-difluorophenyl)pyrrolidin-2-one

(5S)-5-(3-aminopropyl)imidazolidine-2,4-dione hydrochloride

(5S)-5-(3-methyl-1,2-oxazol-5-yl)pyrrolidin-2-one

(5S)-5-(aminomethyl)-1,3-oxazolidin-2-one hydrochloride