The novel derivatives of (hetero)aromatic ethers and thioethers represented by the following general formula I:
(HET)Ar-X-CH₂-Y-CH₂-O-R (I)
wherein:
(HET)Ar represent a mono-,bi- and tri-cyclic aryl or hetero aryl nucleous possibly substituted, X represents -O- or -S-;
Y represents -CO-, a linear or branched polymethylene having 0 to 8 carbon atoms with the proviso that it is not (CH₂)n in which 0
以下是一般公式 I 所表示的 (杂)芳香醚和硫醚的新型衍生物:
(HET)Ar-X-CH₂-Y-CH₂-O-R (I)
其中:
(HET)Ar 表示可能带有取代基的单环、双环和三环芳基或杂芳基核;
X 代表 -O- 或 -S-;
Y 代表 -CO-,具有 0 到 8 个碳原子的直链或支链聚亚甲基,条件是当 (HET)Ar 表示可能用甲基和/或硝基取代的咪唑环,并且同时 X = S,-CH(OR₁),其中 R₁ 是氢或来自脂肪族、芳香族或杂环羧酸的酰基,条件是当 (HET)Ar 表示鸟嘌呤、腺嘌呤或腺苷基团时,R₁ 不是氢,-C=N-R₂,其中 R₂ 是氢或具有 1 到 10 个碳原子的直链或支链烷基,OH,具有 1 到 10 个碳原子的烷氧基,芳氧基,芳烷氧基,-NH₂,-NHCONH₂,-NHCSNH₂;且 R 代表在间位带有羧基或 (C₁-C₂0) 烷氧甲酸基的苯基,其中烷氧基可以是直链或支链的,具有抗高脂血症活性。
此外,还描述了它们的制备过程和含有它们的药物组合物。
Novel aryloxyalkylthioimidazoles as inhibitors of acyl-CoA: cholesterol-O-acyltransferase
作者:M Bani、R Bormetti、W Ceccarelli、R Fiocchi、M Gobetti、M Lombroso、S Magnetti、V Olgiati、M Palladino、M Villa、E Vanotti
DOI:10.1016/0223-5234(96)88207-9
日期:1995.1
A series of aryloxyalkylthioimidazoles have been synthesized and evaluated for their ability,to interfere with the enzyme acyl-CoA (cholesterol-O-acyltransferase) (ACAT, EC 2.3.1.26). Most of the molecules possessed a good in vitro ACAT inhibitory activity with IC50 values ranging between 0.1 and 2.0 mu M Some of them, eg, 2-5-[(4-isobutoxycarbonyl)phenoxy]-pentylthio} -4,5-diphenylimidazole 13, 2-3-[(4-isobutoxycarbonyl)phenoxy]-2-oximinopropylthio}-4,5-diphenylimidazole 21, 2-3-[(4-isobutoxycarbonyl)phenoxy]-2-hydrazonecarboxamidepropylthio) -4,5-diphenylimidazole 26, 2-[5-(2-pyridoxy)-pentylthio]-4,5-diphenylimidazole 40 and 2-5-[(3,5-diterbutyl-4-hydroxy)phenylthio]pentylthio}-4,5-diphenylimidazole 42, were more potent (range of activity 10-90 nM). They were also more potent with respect to the reference CI-976. When administered orally in hyperlipemic rats, at 10 and 50 mg/kg doses, some representative compounds, like 2-3-[(4-isobutoxycarbonyl)phenoxy]-2-hydroxypropylthio}-4,5-diphenylimidazole 1, 13 and 26, reduced VLDL/LDL-associated cholesterol levels by 30-50% and increased HDL cholesterol levels by 15-50%. In addition, liver accumulation of esterified cholesterol was counteracted (50-80% reduction) and liver ACAT ex vivo activity was decreased by 70-85%. Finally, the good efficacy displayed in an endogenous model of hypertriglyceridemia strongly supports the hypothesis of a good systemic availability, which constitutes one of the principal properties of a valuable ACAT inhibitor.