(1R,4R)-2-Amino-N-(4-dimethylamino-cyclohexyl)-acetamide

(S)-2-Amino-N-methyl-N-(1-methyl-piperidin-3-ylmethyl)-propionamide

(S)-2-Amino-N-(4-dimethylamino-cyclohexyl)-N-methyl-propionamide

(S)-2-Amino-N-ethyl-N-(1-methyl-piperidin-3-yl)-propionamide

(S)-2-Amino-N-ethyl-N-(1-methyl-piperidin-3-ylmethyl)-propionamide

(S)-2-Amino-N-isopropyl-N-(1-methyl-piperidin-3-yl)-propionamide

(1R,4R)- (S)-2-Amino-N-(4-dimethylamino-cyclohexyl)-N-isopropyl-propionamide

(S)-2-Amino-N-cyclopropyl-N-((R)-1-methyl-pyrrolidin-3-yl)-propionamide

(S)-2-Amino-N-cyclopropyl-N-(1-methyl-piperidin-4-ylmethyl)-propionamide

(S)-2-Amino-N-cyclopropyl-N-(2-dimethylamino-cyclohexyl)-propionamide

(S)-2-Amino-3-methyl-N-(1-methyl-piperidin-3-ylmethyl)-butyramide