Discovery of 4‐(isopentyloxy)‐3‐nitrobenzamide derivatives as xanthine oxidase inhibitors through a non‐anthraquinone exploration
摘要:
In our previous study, we reported a series of N‐(9,10‐anthraquinone‐2‐carbonyl) amino acid derivatives as novel inhibitors of xanthine oxidase (XO). Recognizing the suboptimal drug‐like properties associated with the anthraquinone moiety, we embarked on a nonanthraquinone medicinal chemistry exploration in the current investigation. Through systematic structure–activity relationship (SAR) studies, we identified a series of 4‐(isopentyloxy)‐3‐nitrobenzamide derivatives exhibiting excellent in vitro potency against XO. The optimized compound, 4‐isopentyloxy‐N‐(1H‐pyrazol‐3‐yl)‐3‐nitrobenzamide (6k), demonstrated exceptional in vitro potency with an IC50 value of 0.13 μM. Compound 6k showed favorable drug‐like characteristics with ligand efficiency (LE) and lipophilic ligand efficiency (LLE) values of 0.41 and 3.73, respectively. In comparison to the initial compound 1d, 6k exhibited a substantial 24‐fold improvement in IC50, along with a 1.6‐fold enhancement in LE and a 3.7‐fold increase in LLE. Molecular modeling studies provided insights into the strong interactions of 6k with critical amino acid residues within the active site. Furthermore, in vivo hypouricemic investigations convincingly demonstrated that 6k significantly reduced serum uric acid levels in rats. The MTT results revealed that compound 6k is nontoxic to healthy cells. The gastric and intestinal stability assay demonstrated that compound 6k exhibits good stability in the gastric and intestinal environments. In conclusion, compound 6k emerges as a promising lead compound, showcasing both exceptional in vitro potency and favorable drug‐like characteristics, thereby warranting further exploration.
DOI:
10.1002/ardp.202400137
作为产物:
描述:
3-硝基-4-羟基苯甲酸甲酯 、 正溴丁烷 以to afford methyl 4-butoxy-3-nitrobenzoate 68 (260 mg, 1.027 mmol, 67.5% yield) as a white solid的产率得到methyl 4-butoxy-3-nitrobenzoate
参考文献:
名称:
3-AMIDOBENZAMIDES AND USES THEREOF FOR INCREASING CELLULAR LEVELS OF A3G AND OTHER A3 FAMILY MEMBERS
[EN] 3-AMIDOBENZAMIDES AND USES THEREOF FOR INCREASING CELLULAR LEVELS OF A3G<br/>[FR] 3-AMIDOBENZAMIDES ET LEURS UTILISATIONS POUR AUGMENTER LES TAUX CELLULAIRES D'A3G
申请人:UNIV NORTHWESTERN
公开号:WO2016029136A1
公开(公告)日:2016-02-25
Disclosed are novel benzamide compounds and the uses thereof for treating diseases and disorders in a patient in need thereof by increasing cellular levels of A3G and/or other members of the A3 family of proteins in the patient. The disclosed compounds include 3-benzamide compounds that may be administered to treat an HIV- 1 infection or cancer in a patient.