(S)-2-Amino-N-(2-furan-2-yl-2-oxo-ethyl)-3-methyl-butyramide

(S)-2-Amino-N-methyl-N-(2-oxo-2-thiophen-2-yl-ethyl)-propionamide

(S)-2-Amino-N-methyl-N-(2-oxo-2-thiazol-2-yl-ethyl)-propionamide

(S)-2-Amino-3,N-dimethyl-N-(1-thiazol-2-yl-ethyl)-butyramide

(S)-2-Amino-N-cyclopropyl-N-furan-2-ylmethyl-propionamide

(S)-2-Amino-3-methyl-N-thiophen-3-ylmethyl-butyramide

(S)-2-Amino-N-cyclopropyl-3-methyl-N-thiophen-3-ylmethyl-butyramide

2-[(2-Hydroxy-ethyl)-methyl-amino]-1-(1H-pyrrol-2-yl)-ethanone

2-Chloro-N-[2-oxo-2-(1H-pyrrol-2-yl)-ethyl]-acetamide

(S)-2-Amino-N-methyl-N-[2-oxo-2-(1H-pyrrol-2-yl)-ethyl]-propionamide

(S)-3-Chloro-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-Iodomethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

3-(Toluene-4-sulfonyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

3-(Toluene-4-sulfonyloxymethyl)-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(Toluene-4-sulfonyloxy)-piperidine-1-carboxylic acid tert-butyl ester