- 3D QSAR studies based in silico screening of 4,5,6-triphenyl-1,2,3,4- tetrahydropyrimidine analogs for anti-inflammatory activity
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The 3D QSAR studies based on generation of common pharmacophore hypotheses (CPHs) were performed separately for the series of 1,2,3,4-tetrahydropyrimidin- 5-yl-acetic acid and 2-(4-sulfonylphenyl)pyrimidine analogs for their in-vivo anti-inflammatory acti
- Lokwani, Deepak K.,Mokale, Santosh N.,Shinde, Devanand B.
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- Emergent antibacterial activity ofN-(thiazol-2-yl)benzenesulfonamides in conjunction with cell-penetrating octaarginine
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Hybrid antimicrobials that combine the effect of two or more agents represent a promising antibacterial therapeutic strategy. In this work, we have synthesizedN-(4-(4-(methylsulfonyl)phenyl)-5-phenylthiazol-2-yl)benzenesulfonamide derivatives that combine
- Das Mahapatra, Amarjyoti,Datta, Bhaskar,Hadianawala, Murtuza,Majhi, Sasmita,Mishra, Abhijit,Pandit, Shiny,Ratrey, Poonam
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p. 28581 - 28592
(2021/09/22)
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- Design, synthesis and in vitro study of 5,6-diaryl-1,2,4-triazine-3-ylthioacetate derivatives as COX-2 and β-amyloid aggregation inhibitors
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In order to find novel cyclooxygenase (COX)-2 inhibitors for treating inflammatory-based diseases such as Alzheimer's disease (AD), an ethyl carboxylate side chain was added to 5-(4-chlorophenyl)-6-(4-(methylsulfonyl)phenyl)-3-(methylthio)-1,2,4-triazine
- Dadashpour, Sakineh,Kucukkilinc, Tuba Tuylu,Tan, Oya Unsal,Ozadali, Keriman,Irannejad, Hamid,Emami, Saeed
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p. 179 - 187
(2015/03/14)
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- Structure-based design and synthesis of antiparasitic pyrrolopyrimidines targeting pteridine reductase 1
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The treatment of Human African trypanosomiasis remains a major unmet health need in sub-Saharan Africa. Approaches involving new molecular targets are important; pteridine reductase 1 (PTR1), an enzyme that reduces dihydrobiopterin in Trypanosoma spp., has been identified as a candidate target, and it has been shown previously that substituted pyrrolo[2,3-d]pyrimidines are inhibitors of PTR1 from Trypanosoma brucei (J. Med. Chem. 2010, 53, 221-229). In this study, 61 new pyrrolo[2,3-d]pyrimidines have been prepared, designed with input from new crystal structures of 23 of these compounds complexed with PTR1, and evaluated in screens for enzyme inhibitory activity against PTR1 and in vitro antitrypanosomal activity. Eight compounds were sufficiently active in both screens to take forward to in vivo evaluation. Thus, although evidence for trypanocidal activity in a stage I disease model in mice was obtained, the compounds were too toxic to mice for further development.
- Khalaf, Abedawn I.,Huggan, Judith K.,Suckling, Colin J.,Gibson, Colin L.,Stewart, Kirsten,Giordani, Federica,Barrett, Michael P.,Wong, Pui Ee,Barrack, Keri L.,Hunter, William N.
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supporting information
p. 6479 - 6494
(2014/10/16)
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- Synthesis, docking simulation, biological evaluations and 3D-QSAR study of 5-Aryl-6-(4-methylsulfonyl)-3-(metylthio)-1,2,4-triazine as selective cyclooxygenase-2 inhibitors
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A series of 5-Aryl-6-(4-methylsulfonyl)-3-(metylthio)-1,2,4-triazine derivatives were synthesized and their COX-1/COX-2 inhibitory activity as well as in vivo anti-inflammatory and analgesic effects were evaluated. All of compounds showed strong inhibitio
- Irannejad, Hamid,Kebriaieezadeh, Abbas,Zarghi, Afshin,Montazer-Sadegh, Farhad,Shafiee, Abbas,Assadieskandar, Amir,Amini, Mohsen
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p. 865 - 873
(2014/02/14)
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- Design and synthesis of new 2,4,5-triarylimidazole derivatives as selective cyclooxygenase (COX-2) inhibitors
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A new group of 2,4,5-triarylimidazole derivatives, possessing a methyl sulfonyl pharmacophore, were synthesized and their biological activities were evaluated for cyclooxygenase-2 (COX-2) inhibitory activity. In vitro COX-1/COX-2 structure-activity relati
- Zarghi, A.,Arfaei, S.,Ghodsi, R.
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p. 1803 - 1810,8
(2020/07/30)
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- Design, synthesis and biological evaluation of new (E)- and (Z)-1,2,3-triaryl-2-propen-1-ones as selective COX-2 inhibitors
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A group of (E)-and (Z)-1,2,3-triaryl-2-propen-1-one derivatives possessing a methylsulfonyl COX-2 pharmacophore at the para position of the C-1 phenyl ring were synthesized and evaluated as selective COX-2 inhibitors. In vitro COX-1/COX-2 structure-activi
- Arfaie, Sara,Zarghi, Afshin
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experimental part
p. 4013 - 4017
(2010/09/06)
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- Synthesis and biological evaluation of 2-trifluoromethyl/sulfonamido-5,6-diaryl substituted imidazo[2,1-b]-1,3,4-thiadiazoles: A novel class of cyclooxygenase-2 inhibitors
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A series of 2-trifluoromethyl/sulfonamido-5,6-diarylsubstituted imidazo[2,1-b]-1,3,4-thiadiazole derivatives 15a-j have been synthesized by the reaction of 2-amino-5-trifluoromethyl/sulfonamido-1,3,4-thiadiazoles 14a-b and appropriately substituted α-bromo-1,2-(p-substituted)diaryl-1-ethanones 13a-h. Structures of these compounds were established by IR, 1H NMR, 13C NMR, Mass, and HRMS data. The selected compounds were evaluated for their preliminary in vitro cyclooxygenase inhibitory activity against COX-2 and COX-1enzymes using colorimetric method. The compounds tested showed selective inhibitory activity toward COX-2 (80.6-49.4%) over COX-1 (30.6-8.6), amongst them compounds 15f and 15j showed appreciable COX-2 selective inhibitory activity. These compounds also exhibited significant anti-inflammatory activity (70.09-42.32%), which is comparable to that of celecoxib in the carrageenan-induced rat paw edema method.
- Gadad, Andanappa K.,Palkar, Mahesh B.,Anand,Noolvi, Malleshappa N.,Boreddy, Thippeswamy S.,Wagwade
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p. 276 - 283
(2008/03/28)
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- Syntheses of 4,5-diaryl-1,2,3-thiadiazoles
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Reaction of thionyl chloride with semicarbazones of 1-(4- methylsulfonylphenyl)-2-(4-substituted pheny)lethanone gave 4-(4- methylsulfonylphenyl)-5-(4-substituted) pheny-1,2,3-thiadiazoles 5. Compounds 5-phenyl-4-(substitutedphenyl)-1,2,3-thiadiazoles 14 were similarly prepared. Chlorosulfonation of the latter followed by ammonia gave the desired compounds 5-(4-aminosulfonylphenyl)-4-(substituted) phenyl-1,2,3-thiadiazoles 6. Copyright Taylor & Francis Inc.
- Karimi, Lila,Navidpour, Latifeh,Amini, Mohsen,Shafiee, Abbas
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p. 1593 - 1600
(2007/10/03)
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- Synthesis and biological evaluation of 2-phenylpyran-4-ones: A new class of orally active cyclooxygenase-2 inhibitors
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A series of 2-phenylpyran-4-ones were prepared and evaluated for their ability to inhibit cyclooxygenase-2 (COX-2). Extensive structure-activity relationship work was carried out within this series, and a number of potent and selective COX-2 inhibitors were identified. Compounds having a p-methylsulfone group at the 2-phenyl ring showed the best COX-2 inhibitory activity. The introduction of a substituted phenoxy ring at position 3 enhanced both the in vitro and in vivo activity within the series. A selected group of 3-phenoxypyran-4-ones exhibited excellent activity in an experimental model of pyresis. The in vivo antiinflammatory activity of these compounds was confirmed with the evaluation of their antiarthritic and analgesic effectiveness. Moreover, their pharmacokinetic profile in rats is compatible with a once a day administration by oral route in humans. Within this novel series, compounds 21, 31, 34, and 35 have been selected for further preclinical and clinical evaluation.
- Caturla, Francisco,Jiménez, Juan-Miguel,Godessart, Núria,Amat, Mercè,Cárdenas, Alvaro,Soca, Lídia,Beleta, Jordi,Ryder, Hamish,Crespo, María I.
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p. 3874 - 3886
(2007/10/03)
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- Synthesis and biological evaluation of 2,3-diarylpyrazines and quinoxalines as selective COX-2 inhibitors
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Several 2,3-diaryl pyrazines and quinoxalines with 4-sulfamoyl (SO 2NH2)/methylsulfonyl (SO2Me)-phenyl pharmacophores have been synthesized and evaluated for the cyclooxygenase (COX-1/COX-2) inhibitory activity. Smaller groups such as methoxy, methyl and fluoro when substituted at/around position-4 of the adjacent phenyl ring, have great impact on the selective COX-2 inhibitory activity of the series. Many potential compounds were obtained from a brief structure-activity relationship (SAR) study. Two of these, compounds 11 and 25 exhibited excellent in vivo activity in the established animal model of inflammation. Since compound 25 possessed an amenable sulfonamide group, two of its prodrugs 48 and 49 were also synthesized. Both of them have excellent in vivo potential, and represent a new class of COX-2 inhibitor.
- Singh, Sunil K.,Saibaba,Ravikumar,Rudrawar, Santosh V.,Daga, Pankaj,Rao, C. Seshagiri,Akhila,Hegde,Rao, Y. Koteswar
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p. 1881 - 1893
(2007/10/03)
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- 1,2-Diaryl-1-ethanone and pyrazolo [4,3-c] quinoline-4-one as novel selective cyclooxygenase-2 inhibitors
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Novel 1,2-diaryl-1-ethanone 1 and pyrazolo [4,3-c] quinoline-4-one 2, with pharmacophores different from the known COX inhibitors were identified as selective COX-2 inhibitors. The communication briefly describes SAR of both the series.
- Baruah, Bipul,Dasu, Kavitha,Vaitilingam, Balasubramanian,Vanguri, Akhila,Rao Casturi, Seshagiri,Rao Yeleswarapu, Koteswar
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p. 445 - 448
(2007/10/03)
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- A high speed parallel synthesis of 1,2-diaryl-1-ethanones via a clean-chemistry C-C bond formation reaction
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In this report, we describe the parallel as well as conventional synthesis of 1,2-diaryl-1-ethanones via environmentally benign acylation of arenes with in situ generated arylacetyl trifluoroacetates. A wide variety of arylacetic acids I participated in trifluoroacetic anhydride/phosphoric acid mediated C-C bond formation reaction when reacted with arenes of type II to give 1,2-diaryl-1-ethanones III in good to excellent yield. Under the solvent-free conditions these chemical transformations that normally require longer reaction time can be performed within minutes in good yield.
- Veeramaneni, Venugopal Rao,Pal, Manojit,Yeleswarapu, Koteswar Rao
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p. 3283 - 3290
(2007/10/03)
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- Aryloxypropanolamine β 3 adrenergic agonists
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Compounds of the formula STR1 and pharmaceutically acceptable salts thereof wherein: R 1 to R 9 are as defined herein and m is the integer 0 or 1. These compounds are beta 3 adrenergic receptor agonists and are useful, therefore for example, in the treatment of diabetes, obesity, gastrointestinal diseases and achalasia.
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