Certain trans-6-[2-(N-heteroaryl-3,5-disubstituted) pyrazol-4-yl)ethyl]- or ethenyl]tetrahydro-4-hydroxy-2H-pyran-2-ones and the corresponding ring-opened acids, esters and N-oxides derived therefrom which are potent inhibitors of the enzyme 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG CoA reductase) and are thus useful hypolipidemic or hypocholesterolemic agents. Pharmaceutical compositions containing such compounds, and a method of inhibiting the biosynthesis of cholesterol employing such pharmaceutical compositions are also disclosed.
某些转-6-[2-(N-杂环芳基-3,5-二取代)
吡唑-4-基)乙基]-或
乙烯基]四氢-
4-羟基-
2H-吡喃-2-酮及其相应的环开放酸、酯和N-氧化物是酶3-羟基-3-甲基戊二酰
辅酶A还原酶(
HMG CoA还原酶)的有效
抑制剂,因此是有用的降脂或降
胆固醇剂。还公开了含有这些化合物的制药组合物以及使用这些制药组合物抑制
胆固醇生物合成的方法。