55556-92-8Relevant academic research and scientific papers
Synthesis of new 4-[2-(4-methyl(amino)sulfonylphenyl)-5-trifluoromethyl-2H-pyrazol-3-yl]-1,2,3,6-tetrahydropyridines: A search for novel nitric oxide donor anti-inflammatory agents
Chowdhury, Morshed Alam,Abdellatif, Khaled R.A.,Dong, Ying,Knaus, Edward E.
experimental part, p. 8882 - 8888 (2009/04/11)
A group of 4-[2-(4-methyl(amino)sulfonylphenyl)-5-trifluoromethyl-2H-pyrazol-3-yl]-1,2,3,6-tetrahydropyridines (11-14) possessing a variety of substituents (Me, CO2Et, H, N = O) attached to the 1,2,3,6-tetrahydropyridyl N1-nitrogen atom were synthesized and evaluated as anti-inflammatory agents. Structure-activity relationship data showed that the N-methyl-1,2,3,6-tetrahydropyridyl moiety is a suitable bioisosteric replacement for the tolyl moiety in celecoxib. The most potent compound 4-[5-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-3-trifluoromethylpyrazol-1-yl]benzenesulfonamide (11b; ED50 = 61.2 mg/kg po) exhibited an anti-inflammatory activity between that of the reference drugs celecoxib (ED50 = 10.8 mg/kg po) and aspirin (ED50 = 128.7 mg/kg po). The synthesis of model hybrid nitric oxide donor N-diazen-1-ium-1,2-diolate derivatives of 4-[2-(4-methyl(amino)sulfonylphenyl)-5-trifluoromethyl-2H-pyrazol-3-yl]-1,2,3,6-tetrahydropyridines (5) requires further investigation since the reaction of 1,2,3,6-tetrahydropyridines with nitric oxide furnished the undesired N-nitroso-1,2,3,6-tetrahydrohydropyridyl product rather than the desired N-diazen-1-ium-1,2-diolate-1,2,3,6-tetrahydropyridyl product.
Pyrazole-3-carboxamide derivatives, process for their preparation and pharmaceutical compositions in which they are present
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, (2008/06/13)
The present invention relates to novel pyrazole-3-carboxamide derivatives of the formula STR1 in which the substituents are as defined in the specification. The present invention further relates to a process for the preparation of these novel derivatives and to the pharmaceutical compositions in which they are present.
