Studies of hypolipidemic agents. I. Syntheses and hypolipidemic activities of 1-substituted 2-alkanone derivatives.
作者:KAZUO OGAWA、TADAFUMI TERADA、YOSHIYUKI MURANAKA、TOSHIHIRO HAMAKAWA、SADAO HASHIMOTO、SETSURO FUJII
DOI:10.1248/cpb.34.1118
日期:——
Many 1-substituted 2-alkanone derivatives were synthesized and their inhibitory activities toward pancreatic lipase and esterase were examined in order to obtain hypolipidemic agents. 1-Benzenesulfonyloxy-2-pentanone (VI-2a) and 1-(2, 4, 6-trimethylbenzenesulfonyloxy)-2-pentanone (VI-2q) exhibited not only potent and selective esterase inhibitions (IC50 : 9.0×10-7M and 1.0×10-6M, respectively), but also potent hypolipidemic action (90 and 92% reductions of plasma triglyceride, and 53 and 90% reductions of plasma total cholesterol, respectively). A novel working hypothesis is presented to account for the lowering of the plasma lipids level, i.e., that inhibition of esterase and lipase activities in the small intestinal lumen may be responsible for the decrease in the plasma lipids level.
合成了许多1-取代的2-酮烷基衍生物,并考察了它们对胰脂肪酶和酯酶的抑制活性,以期获得降脂药物。1-苯磺酰氧基-2-戊酮(VI-2a)和1-(2, 4, 6-三甲基苯磺酰氧基)-2-戊酮(VI-2q)不仅表现出显著且具有选择性的酯酶抑制(IC50:9.0×10^-7M 和 1.0×10^-6M),而且还具有强效的降脂作用(血浆甘油三脂分别减少90%和92%,血浆总胆固醇分别减少53%和90%)。提出了一个新的工作假设来解释血浆脂质水平的降低,即小肠腔内酯酶和脂肪酶活性的抑制可能是导致血浆脂质水平下降的原因。