synthesized. Dihydro-orotate dehydrogenase from Clostridium oroticum was shown to be inhibited by these compounds. A related series of 5-membered-ring compounds (hydantoins and pyrazoles) was prepared but all the compounds were found to be inactive. In order to correlate these observations with previous results concerning 5-arylmethylhydantoins and 5-arylidene-hydantoins as inhibitors, 5-arylidenebarbiturates
合成了一系列在
环丙烷环上带有烷基和芳基取代基的5-螺
环丙烷基
巴比妥酸酯。已证明来自Orticum的梭状芽孢杆菌的二氢
乳清酸脱氢酶被这些化合物抑制。制备了一系列相关的五元环化合物(乙内酰
脲和
吡唑),但发现所有化合物均无活性。为了使这些观察结果与以前的有关5-芳基甲基乙内酰
脲和5-芳基-乙内酰
脲作为
抑制剂的结果相关联,还评估了5-芳基
戊二酸酯作为
抑制剂,发现它们是所研究化合物中活性最高的。该结果在该酶的分子识别的背景下以及使用底物替代物作为构建酶潜在
抑制剂的模板的背景下得到了解释。