Novel Acyl-CoA: Cholesterol Acyltransferase Inhibitor: Indoline-Based Sulfamide Derivatives with Low Lipophilicity and Protein Binding Ratio
作者:Kenji Takahashi、Masaru Ohta、Yoshimichi Shoji、Masayasu Kasai、Kazuyoshi Kunishiro、Tomohiro Miike、Mamoru Kanda、Hiroaki Shirahase
DOI:10.1248/cpb.58.1057
日期:——
To find a novel acyl-CoA: cholesterol acyltransferase inhibitor, a series of sulfamide derivatives were synthesized and evaluated. Compound 1d, in which carboxymethyl moiety at the 5-position of Pactimibe was replaced by a sulfamoylamino group, showed 150-fold more potent anti-foam cell formation activity (IC(50): 0.02 microM), 1.6-fold higher log D(7.0) (4.63), and a slightly lower protein binding
为了找到新型的酰基辅酶A:胆固醇酰基转移酶抑制剂,合成并评估了一系列磺酰胺衍生物。化合物1d(其中Pactimibe的5位上的羧甲基部分被氨磺酰基氨基取代)显示出更强的抗泡沫细胞形成活性150倍(IC(50):0.02 microM),log D(1.6倍高) 7.0)(4.63),且蛋白质结合率略低于Pactimibe(93.2%)。化合物1i(其中1d的1位辛基链被乙氧基乙基取代)显示出较低的log D(7.0)(1.73),并保持了3倍的高消泡细胞形成活性(IC(50): 1.0 microM),而不是Pactimibe。1i的血浆蛋白结合率(PBR)远低于Pactimibe(62.5%vs. 98.1%),口服给药后,其在兔动脉粥样硬化主动脉中的分配比例要高于Pactimibe。即使与血清一起孵育,化合物1i的浓度为10 microM时,也能显着抑制动脉粥样硬化兔主动脉中的胆固醇酯