5-Aryl-1H-pyrazole-3-carboxylic acids as selective inhibitors of human carbonic anhydrases IX and XII
摘要:
Inhibitory activity of a congeneric set of 23 phenyl-substituted 5-phenyl-pyrazole-3-carboxylic acids toward human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms I, II, IX and XII was evaluated by a stopped-flow CO2 hydrase assay. These compounds exerted a clear, selective inhibition of hCA IX and XII over hCAI and II, with Ki in two to one digit micromolar concentrations (4-50 mu M). Derivatives bearing bulkier substituents in para-position of the phenyl ring inhibited hCA XII at one-digit micromolar concentrations, while derivatives having alkyl substituents in both ortho-and meta-positions inhibited hCA IX with Kis ranging between 5 and 25 mu M. Results of docking experiments offered a rational explanation on the selectivity of these compounds toward CA IX and XII, as well as on the substitution patterns leading to best CA IX or CA XII inhibitors. By examining the active sites of these four isoforms with GRID generated molecular-interaction fields, striking differences between hCA XII and the other three isoforms were observed. The field of hydrophobic probe (DRY) appeared significantly different in CA XII active site, comparing to other three isoforms studied. To the best of our knowledge such an observation was not reported in literature so far. Considering the selectivity of these carboxylates towards membrane-associated over cytosolic CA isoforms, the title compounds could be useful for the development of isoform-specific non-sulfonamide CA inhibitors. (C) 2015 Elsevier Ltd. All rights reserved.
[EN] SMALL MOLECULES FOR DISRUPTING THE SUPER ELONGATION COMPLEX AND INHIBITING TRANSCRIPTION ELONGATION FOR CANCER THERAPY [FR] PETITES MOLÉCULES PERMETTANT DE PERTURBER LE COMPLEXE DE SUPER-ALLONGEMENT ET D'INHIBER L'ALLONGEMENT DE LA TRANSCRIPTION POUR UNE CANCÉROTHÉRAPIE
Non-peptide-based new class of platelet aggregation inhibitors: Design, synthesis, bioevaluation, SAR, and<i>in silico</i>studies
作者:Pradeep K. Jaiswal、Vashundhra Sharma、Surendra Kumar、Manas Mathur、Ajit K. Swami、Dharmendra K. Yadav、Sandeep Chaudhary
DOI:10.1002/ardp.201700349
日期:2018.4
A series of 2‐oxo‐2‐phenylethylidene linked 2‐oxo‐benzo[1,4]oxazine analogues 17a–x and 18a–o, incorporated with a variety of electron‐withdrawing as well as electron‐donating groups at ring A and ring C, were synthesized under greener conditions in excellent yields (up to 98%). These analogues 17a–x and 18a–o were evaluated for their arachidonic acid (AA)‐induced platelet aggregation inhibitory activities
COMPOUNDS AND METHODS FOR TREATING INFLAMMATORY AND FIBROTIC DISORDERS
申请人:Kossen Karl
公开号:US20090318455A1
公开(公告)日:2009-12-24
Disclosed are compounds and methods for treating inflammatory and fibrotic disorders, including methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of the p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the p38 MAPK by the compound. Also disclosed are derivatives and analogs of pirfenidone, useful for modulating a stress activated protein kinase (SAPK) system.
[EN] ISOXAZOLE COMPOUNDS AND METHODS FOR THE TREATMENT OF CYSTIC FIBROSIS<br/>[FR] COMPOSÉS ISOXAZOLES ET PROCÉDÉS POUR LE TRAITEMENT DE LA FIBROSE KYSTIQUE
申请人:FLATLEY DISCOVERY LAB
公开号:WO2016054560A1
公开(公告)日:2016-04-07
The invention relates to a compound of Formula (I) and methods of treating cystic fibrosis comprising the step of administering a therapeutically effective amount of a compound of Formula (I) or II to a patient in need thereof: Formula (I) and Formula (II). The invention relates to the use of substituted oxazole and substituted thiazole compounds in the treatment of cystic fibrosis transmembrane conductance regulator (CFTR) mediated diseases.
“On water” ultrasound-assisted one pot efficient synthesis of functionalized 2-oxo-benzo[1,4]oxazines: First application to the synthesis of anticancer indole alkaloid, Cephalandole A
作者:Pradeep K. Jaiswal、Vashundhra Sharma、Jaroslav Prikhodko、Irina V. Mashevskaya、Sandeep Chaudhary
DOI:10.1016/j.tetlet.2017.03.048
日期:2017.5
For the first time, an efficient, simple, synthetic green protocol for the one-pot synthesis of functionalized 2-oxo-benzo[1,4]oxazines 24–29 in water under ultrasound irradiation is presented. As compared to conventional methods, the present protocol avoids traditional chromatography and purification steps and furnished the target molecules in excellent yields (upto 98%) with no side products. The
Furan-2,3-diones as masked dipoles: synthesis of isotetronic acids and mechanistic considerations
作者:Vincent Barbier、François Couty、Olivier R.P. David
DOI:10.1016/j.tet.2016.07.072
日期:2016.9
The formal dipolar behaviour of furan-2,3-diones is illustrated by their reaction with ethyl glyoxylate under Lewis basic activation uniquely, giving access to isotetronic derivatives. The Janus-type nature of the activated species, both nucleophilic and electrophilic is revealed by ring-opening of the starting ketolactone. An unexpected reversible side-reaction was identified by in situ monitoring