Novel Indoline-Based Acyl-CoA:Cholesterol Acyltransferase Inhibitor with Antiperoxidative Activity: Improvement of Physicochemical Properties and Biological Activities by Introduction of Carboxylic Acid
作者:Kenji Takahashi、Masayasu Kasai、Masaru Ohta、Yoshimichi Shoji、Kazuyoshi Kunishiro、Mamoru Kanda、Kazuyoshi Kurahashi、Hiroaki Shirahase
DOI:10.1021/jm800248r
日期:2008.8.1
A series of novel indoline derivatives with an ionizable moiety were synthesized to find a bioavailable acyl-CoA:cholesterol acyltransferase (ACAT) inhibitor with antiperoxidative activity. [7-(2,2-Dimethylpropanamido)-4,6-dimethyl-1-octylindolin-5-yl]acetic acid hemisulfate (2, pactimibe sulfate) with low lipophilicity and high water solubility showed good oral absorption and inhibitory activity against
合成了一系列具有可离子化部分的新型吲哚啉衍生物,以发现具有抗过氧化活性的生物可利用的酰基辅酶A:胆固醇酰基转移酶(ACAT)抑制剂。[7-(2,2-二甲基丙酰胺基)-4,6-二甲基-1-辛基吲哚-5-基]乙酸半硫酸盐(2,硫酸倍他米酯)低亲脂性和高水溶性显示出良好的口服吸收和抑泡活性分化后暴露于乙酰基低密度脂蛋白的THP-1细胞中的细胞形成(IC50:0.3 microM)和高胆固醇血症兔的低密度脂蛋白的抗过氧化作用(IC50:1.0 microM)。2抑制了巨噬细胞,肝和肠道ACAT活性(IC50:分别为1.9、0.7和0.7 microM)。口服2 mg 10 mg / kg时,最大血浆浓度在大鼠中为0.9 microg / mL,在兔子中为3.0 microg / mL,在狗中为11.2 microg / mL。在高胆固醇血症兔,大鼠和犬中以3 mg / kg / day重复给予2降低的血浆LDL