Novel Tetrahydroisoquinoline Derivatives with Inhibitory Activities against Acyl-CoA: Cholesterol Acyltransferase and Lipid Peroxidation
作者:Masaru Ohta、Kenji Takahashi、Masayasu Kasai、Yoshimichi Shoji、Kazuyoshi Kunishiro、Tomohiro Miike、Mamoru Kanda、Chisato Mukai、Hiroaki Shirahase
DOI:10.1248/cpb.58.1066
日期:——
To find a novel acyl-CoA: cholesterol acyltransferase (ACAT) inhibitor with anti-lipid peroxidative activity, a series of tetrahydroisoquinoline derivatives were synthesized and evaluated. A compound with a N-(4-hydroxy-2,3,5-trimethylphenyl)carbamoyl moiety at the 3-position and an octanoyl moiety at the 2-position (7) was demonstrated to show anti-foam cell formation activity stronger than and anti-lipid
为了找到具有抗脂质过氧化活性的新型酰基辅酶A:胆固醇酰基转移酶(ACAT)抑制剂,合成并评估了一系列四氢异喹啉衍生物。具有在3位上具有N-(4-羟基-2,3,5-三甲基苯基)氨基甲酰基部分和在2位上具有辛酰基部分的化合物(7)被证明具有比2更高的消泡细胞形成活性。和抗脂质过氧化活性可与Pactimibe媲美,但几乎不经口服吸收。为了提高其生物利用度,缩短了2位的酰基链,并在7位的7位引入了各种极性或碱性部分。在合成的衍生物中,(S)-7-二甲基氨基-N-(4-羟基) -2,3,5-三甲基苯基)-2-异丁酰基-1,2,3,4-四氢异喹啉-3-羧酰胺盐酸盐(21)显示约16倍强的抗泡沫细胞形成活性,3倍强的肝ACAT抑制活性,相似的抗低密度脂蛋白(LDL)氧化活性和2倍强效与Pactimibe相比,通过氧化应激对巨噬细胞死亡的保护活性。在大鼠和狗中以10 mg / kg口服给药后,化合物21被