(2S,4S)-4-methoxy-1-(prop-2-enoyl)pyrrolidine-2-carboxylic acid

(2S,4S)-4-methoxy-2-(methoxymethyl)pyrrolidine hydrochloride

(2S,4S)-4-methoxy-2-(methoxymethyl)pyrrolidine-1-carboxamide

(2S,4S)-4-methoxy-2-[(pyrrolidin-1-yl)methyl]pyrrolidine

(2S,4S)-4-methoxypyrrolidine-2-carboxamide hydrochloride

(2S,4S)-4-methoxypyrrolidine-2-carboxylic acid

(2S,4S)-4-methylpyrrolidine-2-carboxylic acid hydrochloride

(2S,4S)-4-phenoxypyrrolidine-2-carboxylic acid hydrochloride

(2S,4S)-4-{[(tert-butoxy)carbonyl]amino}-5-ethoxy-2-fluoro-5-oxopentanoic acid

(2S,4S)-5-(tert-butoxy)-4-{[(tert-butoxy)carbonyl]amino}-2-fluoro-5-oxopentanoic acid

(2S,4S)-5-azido-2-{[(tert-butoxy)carbonyl]amino}-4-fluoropentanoic acid

(2s,4s)-5-oxa-8-azaspiro[3.5]nonan-2-ol hydrochloride

(2s,4s)-6-oxo-7-oxa-5-azaspiro[3.4]octane-2-carboxylic acid

(2s,4s)-8-oxa-5-azaspiro[3.5]nonan-2-ol hydrochloride

(2S,4S)-N-methyl-4-phenylpyrrolidine-2-carboxamide hydrochloride

(2S,4S)-pentane-2,4-diol

(2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolane-2-carbonitrile

(2S,4S,5R,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid

(2S,4S,5S)-1-[(tert-butoxy)carbonyl]-4-hydroxy-5-methylpyrrolidine-2-carboxylic acid

(2S,4S,5S,7S)-5-amino-N-(2-carbamoyl-2,2-dimethylethyl)-4-hydroxy-7-{[4-methoxy-3-(3-methoxypropoxy)phenyl]methyl}-8-methyl-2-(propan-2-yl)nonanamide; but-2-enedioic acid

(2S,5R)-1-(4-fluorobenzenesulfonyl)-5-(hydroxymethyl)pyrrolidine-2-carboxylic acid

(2S,5R)-1-[(tert-butoxy)carbonyl]-5-(pyridin-2-yl)pyrrolidine-2-carboxylic acid

(2S,5R)-1-[(tert-butoxy)carbonyl]-5-(trifluoromethyl)pyrrolidine-2-carboxylic acid

(2S,5R)-1-[(tert-butoxy)carbonyl]-5-carbamoylpyrrolidine-2-carboxylic acid

(2S,5R)-1-[(tert-butoxy)carbonyl]-5-phenylpyrrolidine-2-carboxylic acid

(2S,5R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-5-phenylpyrrolidine-2-carboxylic acid

(2S,5R)-2,5-dimethyl-1-(2,2,2-trifluoroethyl)piperazine

(2S,5R)-2,6-diamino-5-hydroxyhexanoic acid hydrochloride

(2S,5R)-2-(4-fluorophenyl)-5-(methoxymethyl)pyrrolidine hydrochloride

(2S,5R)-3,3-dimethyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R)-4-[(tert-butoxy)carbonyl]-5-methylmorpholine-2-carboxylic acid

(2S,5R)-4-{[(9H-fluoren-9-yl)methoxy]carbonyl}-5-methylmorpholine-2-carboxylic acid

(2S,5R)-5-carbamoylpyrrolidine-2-carboxylic acid hydrochloride

(2S,5R)-5-methyl-2-(prop-1-en-2-yl)cyclohexan-1-one

(2S,5R)-5-methyl-2-(propan-2-yl)cyclohexan-1-one

(2S,5R)-5-methylmorpholine-2-carboxylic acid hydrochloride

(2S,5R)-5-phenylpyrrolidine-2-carboxylic acid hydrochloride

(2S,5R)-5-[(tert-butoxy)carbonyl]oxolane-2-carboxylic acid

(2S,5R)-N-methyl-5-phenylpyrrolidine-2-carboxamide hydrochloride

(2S,5R,6R)-6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R,6R)-6-[(2R)-2-amino-2-(4-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid trihydrate

(2S,5R,6R)-6-[(2R)-2-amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R,6R)-6-[(2R)-2-[(4-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5R,6R)-6-[(5R)-5-amino-5-carboxypentanamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; bis(diethylamine)

(2S,5R,6R)-6-[(5S)-5-amino-5-carboxypentanamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; diethylamine