(S)-2-Amino-N-((S)-1-benzyl-pyrrolidin-2-ylmethyl)-N-ethyl-propionamide

(S)-2-Amino-N-((R)-1-benzyl-pyrrolidin-3-yl)-N-isopropyl-propionamide

(S)-2-Amino-N-(1-benzyl-pyrrolidin-2-ylmethyl)-N-isopropyl-propionamide

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

(S)-2-Amino-N-(1-benzyl-piperidin-3-yl)-N-cyclopropyl-propionamide

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

(S)-2-Amino-N-((R)-1-benzyl-piperidin-3-yl)-3-methyl-butyramide

(S)-2-Amino-N-((R)-1-benzyl-pyrrolidin-3-yl)-3,N-dimethyl-butyramide

(S)-2-Amino-N-(1-benzyl-piperidin-4-ylmethyl)-N-ethyl-3-methyl-butyramide

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

(S)-2-Amino-N-(1-benzyl-piperidin-3-yl)-N-cyclopropyl-3-methyl-butyramide

(S)-2-氨基-N-(1-苄基哌啶-4-基)-N-环丙基-3-甲基-丁酰胺, (S)-2-Amino-N-(1-benzyl-piperidin-4-yl)-N-cyclopropyl-3-methyl-butyramide

((S)-1-Acetyl-pyrrolidin-3-ylamino)-acetic acid

(1R,4R)- (4-Acetylamino-cyclohexylamino)-acetic acid

[((R)-1-Acetyl-pyrrolidin-3-yl)-methyl-amino]-acetic acid