(S)-2-Amino-1-[(S)-3-(isopropyl-methyl-amino)-piperidin-1-yl]-3-methyl-butan-1-one

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

[4-(Cyclopropyl-methyl-amino)-piperidin-1-yl]-acetic acid

4-(2-Hydroxy-ethyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

1-[4-(2-羟乙基)-1-哌嗪基]乙酮, 1-[4-(2-Hydroxy-ethyl)-piperazin-1-yl]-ethanone

4-(2-Amino-ethyl)-piperazine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester

4-(2-Amino-ethyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

4-(2-Chloro-acetyl)-piperazine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester

1-Acetyl-4-(2-chloro-acetyl)-piperazine-2-carboxylic acid methyl ester

4-(2-Amino-acetyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

4-((S)-2-Amino-3-methyl-butyryl)-[1,4]diazepane-1-carboxylic acid benzyl ester