二碳酸二叔丁酯

S-1-boc-4-cbz-2-甲基哌嗪

tert-butyl (2S)-4-benzyl-2-methylpiperazine-1-carboxylate

(2S)-1-piperazinecarboxylic acid, 2-methyl-4-(triphenylmethyl)-1,1-dimethylethyl ester

(S)-1-苄基-3-甲基哌嗪