4-(二氟亚甲基)-L-脯氨酸甲酯

Prothracarcin

4-(pyrrol-1-ylmethyl)pyridine

(S)-1-(叔丁氧基羰基)-2-甲基-4-亚甲基吡咯烷-2-羧酸

methyl 1N-tert-butoxycarbonyl-4-exomethylene-pyrrolidine-(2R)-carboxylate