Bioavailable Acyl-CoA. Cholesterol Acyltransferase Inhibitor with Anti-peroxidative Activity. Synthesis and Biological Activity of Novel Indolinyl Amide and Urea Derivatives.
We synthesized a series of indoline derivatives with an amide or urea moiety and examined their inhibitory effects on acyl-CoA:cholesterolacyltransferase (ACAT) activity, lipid-peroxidation and serum cholesterol levels in experimental animals. Among the derivatives synthesized, a series of N-(1-alkyl-4,6-dimethylindolin-7-yl)-2,2-dimethylpropanamides++ + potently inhibited rabbit intestinal ACAT activity
我们合成了一系列具有酰胺或脲部分的吲哚啉衍生物,并研究了它们对实验动物中酰基辅酶A:胆固醇酰基转移酶(ACAT)活性,脂质过氧化和血清胆固醇水平的抑制作用。在合成的衍生物中,一系列N-(1-烷基-4,6-二甲基吲哚-7-基)-2,2-二甲基丙酰胺++ +有效抑制兔肠道ACAT活性和大鼠脑匀浆脂质过氧化。对ACAT活性的影响与吲哚啉1位烷基链的长度有关。N-(4,6-二甲基-1-辛基吲哚并吲哚-7-基)-2,2-二甲基丙胺盐酸盐(55)对肠道和肝脏ACAT的抑制作用略弱于YM-750,且具有抑制作用对低密度脂蛋白(LDL)的过氧化作用类似于普罗布考。化合物55还在高脂血症大鼠中降低了血清胆固醇,为10 mg / kg / d,而在降血脂仓鼠中降低了20 mg / kg / d。犬的血浆浓度55达到716 ng / ml(10 mg / kg,口服),这是对抗肝ACAT活性和LDL过氧化的有效