181696-73-1Relevant articles and documents
A process for the preparation of sodium compound handkerchief auspicious past cloth and wherein the intermediate impurity, preparation method and application
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, (2017/02/24)
The invention provides parecoxib sodium which is prepared by controlling an intermediate impurity and in particular provides a preparation method of a parecoxib sodium compound as well as the intermediate impurity and an application of the parecoxib sodium compound. According to the preparation method provided by the invention, 3-methyl-4,5-diphenyl-4,5-dihydro-isoxazole-5-alcohol is used as an isomer impurity for preparing 5-methyl-3,4-diphenyl-4,5-dihydro-isoxazole-5-alcohol as an intermediate of the parecoxib sodium, the quality of the 3-methyl-4,5-diphenyl-4,5-dihydro-isoxazole-5-alcohol is controlled in the preparation of the parecoxib sodium, specifically, the impurity content is required not to be higher than 0.5 percent, and an important significance is provided for the product quality of the parecoxib sodium; by obtaining the 3-methyl-4,5-diphenyl-4,5-dihydro-isoxazole-5-alcohol as an isomer impurity of the important 5-methyl-3,4-diphenyl-4,5-dihydro-isoxazole-5-alcohol and further studying 3-methyl-4,5-diphenyl-4,5-dihydro-isoxazole-5-alcohol in the aspects of preparation process, detection process and purification process, important quality monitoring significance is provided for the process with the 5-methyl-3,4-diphenyl-4,5-dihydro-isoxazole-5-alcohol as an industrial production raw material.
METHOD FOR THE PREVENTION OR TREATMENT OF PAIN, INFLAMMATION, AND INFLAMMATION-RELATED DISORDERS WITH A COX-2 SELECTIVE INHIBITOR IN COMBINATION WITH A NITRIC OXIDE-DONATING AGENT AND COMPOSITIONS THEREWITH
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Page/Page column 73-74, (2008/06/13)
Methods and compositions are described for the prevention or treatment of pain, inflammation, and inflammation-related disorders in a subject in need of such prevention or treatment, the method comprising administering to the subject a cyclooxygenase-2 selective inhibitor in combination with a nitric oxide-donating agent. Also described are therapeutic and pharmaceutical compositions and kits that are useful in the present invention.
Method for preparing benzenesulfonyl compounds
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, (2008/06/13)
The present disclosure provides a method for the preparation of aromatic sulfonyl halides by contacting a substituted phenyl compound with a halosulfonic acid and trifluoroacetic acid. The present disclosure further provides a method for the preparation of 4-[5-methyl-3-phenylisoxazol-4-yl]benzenesulfonamide which is useful in treating cyclooxygenase-2 related disorders.