Identification of novel benzimidazole derivatives as inhibitors of leukotriene biosynthesis by virtual screening targeting 5-lipoxygenase-activating protein (FLAP)
摘要:
Pharmacological suppression of leukotriene biosynthesis by 5-lipoxygenase (5-LO)-activating protein (FLAP) inhibitors is a promising strategy to intervene with inflammatory, allergic and cardiovascular diseases. Virtual screening targeting FLAP based on a combined ligand-and structure-based pharmacophore model led to the identification of 1-(2-chlorobenzyl)-2-(1-(4-isobutylphenyl)ethyl)-1H-benzimidazole (7) as developable candidate. Compound 7 potently suppressed leukotriene formation in intact neutrophils (IC50 = 0.31 mu M) but essentially failed to directly inhibit 5-LO suggesting that interaction with FLAP causes inhibition of leukotriene synthesis. For structural optimization, a series of 46 benzimidazole-based derivatives of 7 were synthesized leading to more potent analogues (70-72, 82) with IC50 = 0.12-0.19 mu M in intact neutrophils. Together, our results disclose the benzimidazole scaffold bearing an ibuprofen fingerprint as a new chemotype for further development of anti-leukotriene agents. (C) 2012 Elsevier Ltd. All rights reserved.
Intermolecular Amination of Unactivated C(sp<sup>3</sup>
)−H Bonds with Cyclic Alkylamines: Formation of C(sp<sup>3</sup>
)−N Bonds through Copper/Oxygen-Mediated C(sp<sup>3</sup>
)−H/N−H Activation
作者:Quan Gou、Yu-Wen Yang、Zi-Ning Liu、Jun Qin
DOI:10.1002/chem.201603370
日期:2016.11.2
unactivated C(sp3)−H bonds by cyclic alkylamines mediated by Cu(OAc)2/O2 is reported. This method avoids the use of benzoyloxyamines as the aminating reagent, which are normally prepared from alkylamines in extra steps. A variety of unnatural β2, 2‐amino acid analogues are synthesized by this simple and efficient procedure. This approach offers a solution to the previous unmet challenge of C(sp3)−H/N−H
报道了由Cu(OAc)2 / O 2介导的环状烷基胺对未活化的C(sp 3)-H键进行分子间胺化的第一个例子。该方法避免了使用苯甲酰氧基胺作为胺化试剂,该苯甲酰氧基胺通常是在额外的步骤中由烷基胺制备的。多种非天然β的2,2 -氨基酸类似物是通过这种简单且有效的方法进行合成。这种方法为C(sp 3)-H / N-H活化形成C(sp 3)-N键的先前未解决的挑战提供了解决方案。
Synthesis and Pharmacological Evaluation of New Chemical Entities from Ibuprofen as Novel Analgesic Candidates
choice of drugs that are normally used for the treatment of pain and inflammation. Ibuprofen (I) and its analogues as the most widely used NSAIDs have been synthesized in recent years. In an effort to establish new candidates with improved analgesic properties, derivatives (II-VII) with substitutedaromatic as well as aliphatic moieties were synthesized in this experiment and evaluated in formalin test
Exploring the fatty acid amide hydrolase and cyclooxygenase inhibitory properties of novel amide derivatives of ibuprofen
作者:Alessandro Deplano、Jessica Karlsson、Mona Svensson、Federica Moraca、Bruno Catalanotti、Christopher J. Fowler、Valentina Onnis
DOI:10.1080/14756366.2020.1743283
日期:2020.1.1
yl)propanamide (Ibu-AM68) was found to inhibit the hydrolysis of [3H]anandamide by rat brain homogenates by a reversible, mixed-type mechanism of inhibition with a Ki value of 0.26 µM and an α value of 4.9. At a concentration of 10 µM, the compound did not inhibit the cyclooxygenation of arachidonic acid by either ovine COX-1 or human recombinant COX-2. However, this concentration of Ibu-AM68 greatly
METHOD AND APPARATUS FOR CONTINUOUS FLOW SYNTHESIS OF IBUPROFEN
申请人:McQuade D. Tyler
公开号:US20110054208A1
公开(公告)日:2011-03-03
A multi-step method for the continuous synthesis of ibuprofen or a synthetic precursor of ibuprofen is provided that does not require any intermediate purification or isolation steps and uses reagents compatible with downstream reactions. According to some embodiments, a method is provided wherein isobutylbenzene and a propionyl compound may be converted into a first product in a first Friedel Crafts acylation reaction. The first product may then be converted into a second product in a 1,2-aryl migration reaction. Finally, the second product may be converted into ibuprofen in a hydrolysis reaction. The present invention also provides a method wherein only the first and second reaction steps or only the second and third reaction steps are performed. An apparatus is also provided having two or more microreactors and two or more junctions in particular arrangements for the synthesis of ibuprofen or a synthetic precursor of ibuprofen.
Method and composition for treating neurodegenerative disorders
申请人:Hobden Adrian
公开号:US20050288375A1
公开(公告)日:2005-12-29
The invention provides compositions and methods for treating neurodegenerative disorders. A method of the invention involves administering to an individual in need of treatment a composition having an R-NSAID and an NMDA antagonist. Another method of the invention involves administering to an individual in need of treatment a composition having at least two compounds that are capable of interacting with CYP2C9, wherein at least one of said compounds is an Aβ
42
lowering agent. The methods and compositions of the invention are useful for treating and preventing neurodegenerative disorders like Alzheimer's disease, dementia, mild cognitive impairment.