(1'R,2'S,5'R)-8'-phenylmenthyl (1S,3S,4R)-3-acetoxy-7-azabicyclo[2.2.1]heptane-1-carboxylate

Boc-L-焦谷氨酸甲酯

(S)-1-叔丁基 2-甲基 5-羟基吡咯烷-1,2-二羧酸

1-tert-butyl 2-methyl (2S)-5-methoxypyrrolidine-1,2-dicarboxylate