the enzyme HMG-CoA reductase in vitro. Maintaining a 5-(1-methylethyl) substituent found to be optimal in related studies, structure-activity relationships were established for compounds modified at positions 2, 3, and 4 of the pyrrole ring. The 4-fluorophenyl group was preferred at the pyrrole 2-position, while incorporation of a range of substituted phenyl groups and pyridyl substituents at the 3-position
制备了一系列的7- [2,3-二芳基-5-(1-甲基乙基)-1H-
吡咯-1-基] -3,5-二羟基-
6-庚烯酸酯,并对其抑制
HMG酶的能力进行了评估。 -CoA还原酶在体外。维持在相关研究中发现的最佳的5-(1-甲基乙基)取代基,可以确定在
吡咯环的2、3和4位修饰的化合物的结构活性关系。在
吡咯2-位上优选4-
氟苯基,而在3-位上引入一系列取代的苯基和
吡啶基取代基则提供了具有同等酶抑制活性和大范围亲脂性的化合物。发现五取代
吡咯3h的效力比
洛伐他汀大10倍。