乙酸酐

(3S)-3-azido-1-(phenylmethyl)pyrrolidine

(S)-3-羟基-1-苄基吡咯烷

1-苄基-3-吡咯烷基甲烷磺酸酯

(S)-(-)-1-苄基-3-(叔丁氧羰基氨基)吡咯烷