73874-95-0Relevant articles and documents
Design and development of novel thiazole-sulfonamide derivatives as a protective agent against diabetic cataract in Wistar rats via inhibition of aldose reductase
Yin, Liang,Zhang, Mingxue,He, Tiangeng
, p. 63 - 70 (2021/10/01)
In recent years, ALR2 (aldose reductase) inhibitors have attracted attention for their effective ability to reduce the progression of diabetes-associated cataracts. Therefore, in the present article, we intended to develop novel thiazole-sulfonamide hybrids as a potent inhibitor of ALR2. These molecules significantly inhibited the ALR2 level in the rat lenses homogenate, where the most potent compound 7b showed activity comparable to sorbinil as standard. In Wistar rats, compound 7b improved the insulin level and body weight of the experimental animal together with a reduction in the glucose output. Compound 7b showed a significant reduction in the expression of ALR2 in rat lenses in western blot analysis.
Substituted 2-thioxothiazolidin-4-one derivatives showed protective effects against diabetic cataract via inhibition of aldose reductase
Huang, Wanrong,Zhang, Yue,Liang, Xu,Yang, Lichun
, (2020/04/07)
In an effort to develop a new class of potent aldose reductase inhibitors against diabetic cataracts, a series of novel 2-thioxothiazolidine-4-one derivatives was synthesized in excellent yields via a facile synthetic route. These compounds were tested against aldehyde (ALR1) and aldose reductase (ALR2) enzymes, where they showed considerable inhibitory activity. Among the tested derivatives, compound 6e showed selective and excellent inhibition of ALR2 over ALR1. The experimental diabetes was induced by the intraperitoneal administration of streptozotocin in male Wistar rats. Compound 6e showed positive modulation of body weight, blood glucose, and blood insulin levels in diabetic rats. Compound 6e also showed ALR2 inhibition as evidenced by Western blot analysis in lens homogenates of Wistar rats having cataract. The docking study of 6e was also performed inside the active site of ALR2 to enumerate the key contacts for inhibitory activity.
Catalytic Transfer Hydrodebenzylation with Low Palladium Loading
Yakukhnov, Sergey A.,Ananikov, Valentine P.
, p. 4781 - 4789 (2019/09/16)
A highly-efficient catalytic system for hydrodebenzylation reaction is described. The cleavage of O-benzyl and N-benzyl protecting groups was performed using an uncommonly low palladium loading (0.02–0.3 mol%; TON up to 5000) in a relatively short reaction time. The approach was used for a variety of substrates including pharmaceutically important precursors, and gram-scale deprotection reaction was shown. Transfer conditions together with easy-to-make Pd/C catalyst are the key features of this debenzylation scheme. (Figure presented.).
Method for preparing 4-Boc-aminopiperidine
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Paragraph 0024; 0026; 0027; 0029; 0030; 0032; 0033; 0035, (2018/04/15)
The invention discloses a method for preparing 4-Boc-aminopiperidine. The method includes: allowing N-benzyl-4-piperidone to have reaction with ortho-formate in an alcoholic solution under acid catalysis to form ketal, allowing the ketal to have reaction with tert-butyl carbamate to generate imine, and subjecting the imine to Pd/C catalytic hydrogenation reduction to obtain the 4-Boc-aminopiperidine. The method is short in synthesizing route, easy in raw material obtaining, cheap, simple to operate, high in reaction yield, easy in product separation and purification and promising in application prospect.
Design and development of a novel chalcone derivative as an anticholinesterase inhibitor for possible treatment of dementia
Zhao, Fu-Chun,Wu, Yan,Song, Xiao-Jie
, p. 3311 - 3317 (2017/07/17)
Background: Cognitive decline (e.g., memory loss), which mainly occurs in the elderly, is termed dementia. In the present study, we intended to explore the cholinesterase inhibitory activity of some novel synthesized chalcones, together with their effect on β-amyloid anti-aggregation. Material/Methods: A novel class of chalcone derivatives have been synthesized and characterized by FT-IR,1H-NMR,13C-NMR, and mass and elemental analysis. These derivatives were later used for the determination of acetylcholinesterase (AChE) inhibitory and β-amyloid anti-aggregation activity. Results: The results of the study showed that among the developed compounds, 8g inhibits AChE more prominently than BuChE, as suggested by a selectivity index (SI) of 2.88. Furthermore, the most potent compound, 8g, showed considerable action in inhibition of β-secretase and Aβ aggregation, but not as prominent as that of curcumin as a standard. Conclusions: In conclusion, our study revealed a novel class of chalcone derivatives as a selective inhibitor of AChE with considerably action against β-secretase and Aβ aggregation. Our results may be useful in developing AD drug therapy and warrant further investigation to generate more advanced analogues.
ANTIMICROBIAL COMPOSITIONS, METHODS OF USE, AND METHODS OF TREATMENT OF INFECTIONS
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Page/Page column 33, (2016/12/22)
The present disclosure provides compositions including a compound (e.g., compounds A-D), pharmaceutical compositions including the compound, methods of treatment of a condition (e.g., an infection) or disease, methods of treatment using compositions or pharmaceutical compositions, and the like.
Synthesis, characterization, and DGAT1 inhibition of new 5-piperazinethiazole and 5-piperidinethiazole analogs
Kadam, Kishorkumar S.,Gandhi, Thirumanavelan,Reddy, M. Maheshkumar,Gupte, Amol,Sharma, Rajiv
, p. 802 - 814 (2015/05/13)
In this study, a novel series of 5-piperazinethiazole 2,2-dimethylbutanoic acid and 5-piperidinethiazole 2,2-dimethylbutanoic acid derivatives have been synthesized. Structures of the newly synthesized compounds have been elucidated using 1H-NMR, 13C-NMR, high-resolution mass spectroscopy, and high-performance liquid chromatographic analysis. The synthesized derivatives have been evaluated in vitro for their ability to inhibit the enzyme diacylglycerol acyltransferase 1 responsible for triglyceride biosynthesis.
Autotaxin inhibitors
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Page/Page column, (2014/06/25)
The present invention relates to novel compounds that are autotaxin inhibitors, processes for their preparation, pharmaceutical compositions and medicaments containing them and to their use in diseases and disorders mediated by autotaxin.
Design and optimization of quinazoline derivatives as melanin concentrating hormone receptor 1 (MCHR1) antagonists
Sasmal, Sanjita,Balaji, Gade,Kanna Reddy, Hariprasada R.,Balasubrahmanyam,Srinivas, Gujjary,Kyasa, Shivakumar,Sasmal, Pradip K.,Khanna, Ish,Talwar, Rashmi,Suresh,Jadhav, Vikram P.,Muzeeb, Syed,Shashikumar, Dhanya,Harinder Reddy,Sebastian,Frimurer, Thomas M.,Rist, ?ystein,Elster, Lisbeth,H?gberg, Thomas
, p. 3157 - 3162 (2012/06/04)
Melanin concentrating hormone (MCH) is an important mediator of energy homeostasis and plays a role in metabolic and CNS disorders. The modeling-supported design, synthesis and multi-parameter optimization (biological activity, solubility, metabolic stability, hERG) of novel quinazoline derivatives as MCHR1 antagonists are described. The in vivo proof of principle for weight loss with a lead compound from this series is exemplified. Clusters of refined hMCHR1 homology models derived from the X-ray structure of the β2-adrenergic receptor, including extracellular loops, were developed and used to guide the design.
Structure-activity relationship exploration of Kv1.3 blockers based on diphenoxylate
Nguyen, William,Howard, Brittany L.,Jenkins, David P.,Wulff, Heike,Thompson, Philip E.,Manallack, David T.
supporting information, p. 7106 - 7109 (2013/01/15)
Diphenoxylate, a well-known opioid agonist and anti-diarrhoeal agent, was recently found to block Kv1.3 potassium channels, which have been proposed as potential therapeutic targets for a range of autoimmune diseases. The molecular basis for this Kv1.3 blockade was assessed by the selective removal of functional groups from the structure of diphenoxylate as well as a number of other structural variations. Removal of the nitrile functional group and replacement of the C-4 piperidinyl substituents resulted in several compounds with submicromolar IC50 values.
