L-羟基脯氨酸

反式-4-羟基-L-脯氨酸盐酸盐

N-Boc-L-烯丙基甘氨酸

(2S,4S)-2-(tert-butoxycarbonyl)amino-4-bromomethyl-γ-butyrolactone

(2S,4R)-2-tert-butoxycarbonylamino-4-hydroxymethyl-4-butanolide