through a high‐yielding two‐step synthetic route. They have a dipeptidic structure with a 4‐oxoenoate moiety as a warhead with multiple reactive sites. Dipeptidyl enoates were screened against rhodesain and human cathepsins B and L, and were found to be potent and selective inhibitors of rhodesain. Among them (S,E)‐ethyl 5‐((S)‐2‐[(benzyloxy)carbonyl]amino}‐3‐phenylpropanamido)‐7‐methyl‐4‐oxooct‐2‐enoate
二肽烯醇酸酯是通过高产率的两步合成路线制备的。它们具有带有4-氧代烯酸酯部分的二肽结构,作为具有多个反应位点的战斗部。筛选了对二肽基烯酸酯的罗丹素和人
组织蛋白酶B和L,发现它们是有效的和选择性的罗丹素
抑制剂。其中(S,E)-乙基5-((S)-2--2-[[(苄氧基)羰基]
氨基} -3-苯基丙酰胺基)-7-甲基-4-氧代辛基-2-烯酸酯(6)最多IC 50值为16.4 n M且k inact / K i = 1.6×10 6 M -1 s -1反对罗得沙因。这些二肽基烯酸酯在非常低的浓度下显示出可逆的抑制模式,而在更高的浓度下显示出不可逆的模式。对接研究支持的抑制动力学数据表明,通过
硫代半胱
氨酸在两个反应位上的攻击,具有双重作用模式。