Discovery of a 2-hydroxyacetophenone derivative as an outstanding linker to enhance potency and β-selectivity of liver X receptor agonist
作者:Minoru Koura、Yuki Yamaguchi、Sayaka Kurobuchi、Hisashi Sumida、Yuichiro Watanabe、Takashi Enomoto、Takayuki Matsuda、Ayumu Okuda、Tomoaki Koshizawa、Yuki Matsumoto、Kimiyuki Shibuya
DOI:10.1016/j.bmc.2016.05.048
日期:2016.8
Our research found that the 2-hydroxyacetophenone derivative is an outstanding linker between the 1,1-bistrifluoromethylcarbinol moiety and the imidazolidine-2,4-dione moiety to enhance the potency and β-selectivity of liver X receptor (LXR) agonist in our head-to-tail molecular design. The incorporation of this linker is 20-fold more potent than our previous compound (2) for LXR β agonistic activity
我们的研究发现,2-羟基苯乙酮衍生物是1,1-双三氟甲基甲醇部分与咪唑烷-2,4-二酮部分之间的杰出连接子,可增强我们肝脏X受体激动剂的效力和β选择性。到尾的分子设计。在GAL-4萤光素酶试验中,此连接子的掺入对LXRβ激动活性(EC 50)的效力比我们先前的化合物(2)高20倍。此外,我们还确定了5- [5-(5-(1-甲基乙氧基)吡啶基-2-基] -5-甲基咪唑啉-2,4-二酮(54),它降低了2-羟基苯乙酮衍生物的亲脂性。我们发现,我们新开发的接头和乙内酰脲(54)在提高LXRβ的效力和选择性方面起着关键作用。光学分离的(-)- 56在不增加血浆甘油三酸酯水平的情况下增加了高密度脂蛋白胆固醇的水平,并导致在高脂和胆固醇喂养的低密度脂蛋白受体敲除中主动脉弓内脂质积聚区域的减少出老鼠。在此手稿中,我们报道(-)- 56是一种高度有效的β选择性LXR激动剂,可用于治疗动脉粥样硬化。