Novel oxazole containing phenylpropane derivatives as peroxisome proliferator activated receptor agonists with hypolipidemic activity
作者:Pingali, Harikishore、Raval、Raval、Makadia、Zaware、Goel、Suthar、Jain、Patel
DOI:10.1691/ph.2008.8534
日期:——
α-Alkoxy arylpropanoic acids containing 2-phenyloxazole-4yl-alkyl moiety are found to be potent hypolipidemic agents. These compounds were potent activators of the peroxisome proliferator activated receptor γ (PPARγ), with moderate PPARα activity and known to cause adverse effects such as weight gain and edema, which are essentially attributed to PPARγ activation. Although extensive work has been done on the phenylpropanoic acid class of compounds, other phenyl propane derivatives such as alcohols, amines, ethers etc. have not received much attention. In order to develop predominant PPARα agonists as hypolipidemic agents with minor chemical modifications on compound III, we have synthesised few (2S)-ethoxyphenylpropane derivatives containing a 2-phenyl-5-methyloxazole-4ylalkoxy moiety of the general formula IV and evaluated by PPARα and γ transactivation assay in conjugation with in vivo studies in male Swiss albino mice model. Compounds 3c and 3d showed the desired predominant PPARα activity and excellent tryiglyceride reduction in vivo and were selected as lead compounds for further development as hypolipidemic agents.
研究发现,含有 2-苯基恶唑-4-基烷基的α-烷氧基芳基丙酸是一种有效的降血脂药物。这些化合物是过氧化物酶体增殖激活受体γ(PPARγ)的强效激活剂,具有适度的 PPARα 活性,已知会导致体重增加和水肿等不良反应,这主要归因于 PPARγ 激活。虽然人们对苯丙酸类化合物做了大量研究,但其他苯丙烷衍生物,如醇、胺、醚等却没有引起人们的重视。为了开发作为降血脂药的 PPARα 主要激动剂,我们对化合物 III 稍作化学修饰,合成了一些含有通式 IV 的 2-苯基-5-甲基恶唑-4-基烷氧基的 (2S)- 乙氧基苯基丙烷衍生物,并通过 PPARα 和 γ 转录活化检测以及雄性瑞士白化小鼠模型的体内研究进行了评估。化合物 3c 和 3d 显示出所需的主要 PPARα 活性和优异的体内甘油三酯降低效果,被选为先导化合物,以进一步开发为降血脂药物。