Aziridine‐2,3‐dicarboxylates and N‐acylated derivatives have been evaluated as potential irreversible inhibitors of the cysteine proteinase papain. Dependence of inhibition activity on stereo‐chemistry of the aziridine moiety has been analyzed. Whereas unsubstituted (R,R)‐ and (S,S)‐ diethyl aziridine‐2,3‐dicarboxylates (5) and (2) show no significant difference in inactivation the derivative acylated
Aziridine-2,3-dicarboxylates 和 N-acylated 衍
生物已被评估为半胱
氨酸
蛋白酶木瓜蛋白酶的潜在不可逆
抑制剂。已经分析了抑制活性对
氮丙啶部分立体
化学的依赖性。而未取代的 (R,R)- 和 (S,S)-
二乙基氮丙啶-2,3-二
羧酸酯 (5) 和 (2) 在钝化 BOC-(S)-Phe (BOC- (S)-Phe-(S,S)-Azi) (10) 的活性比非对映异构体 BOC-(S)-Phe-(R,R)-Azi (11) 高 6 倍。用 Z- 或 BOC-(S)-Ala (9, 8) 酰化的类似物具有较低的二级速率常数,表明
抑制剂的
氨基酸部分与酶的
S2 亚位点结合。