benzyl (2S,4R)-1-tert-butoxycarbonyl-4-[(4-methylbenzenesulfonyl)oxy]-2-pyrrolidinecarboxylate

N-Boc-4-氧代-脯氨酸

N-Boc-顺式-4-羟基-L-脯氨酸

(2S,4R)-<4-2H1>-proline

N-Boc-D-cis-4-(p-toluenesulfonyloxy)proline