作者:Tanja Schirmeister
DOI:10.1002/ardp.19963290504
日期:——
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。