N-cbz-4-氧-L-脯氨酸

(2S,4S)-1,2-二苄氧羰基-4-羟基吡咯烷

(2s,4r)-1,2-二苄氧羰基-4-羟基吡咯烷

(2S,4R)-Cbz-4-甲磺酰氧基脯氨酸甲酯

benzyl (2S,4S)-2-formyl-4-hydroxypyrrolidine-1-carboxylate