ES455973A1 - A procedure for the obtaining of bromide from 2- (2-te-nil) -1,4-dimethyl pyridine. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the obtaining of bromide from 2- (2-te-nil) -1,4-dimethyl pyridine. (Machine-translation by Google Translate, not legally binding)
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Laboratorios Made SA
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Laboratorios Made SA
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for the preparation of 2- (2-tenyl) -1,4-dimethylpyridinium bromide of the formula iv indicated below. The process of the invention comprises starting from the 2- (2-thienyl) -4-methylpyridine of formula iii and through the reaction indicated below the product of formula iv is reached. ** (formula) ** 2- (2-tenyl) -1,4-dimethylpyridinium bromide of formula iv is a novel substance endowed with analgesic activity. The process consists in heating the compound of formula iii to the reflux temperature in the presence of an excess of a methyl halide, for example methyl bromide, in an anhydrous solvent. 2- (2-tenyl) -1,4-dimethylpyridinium bromide (IV) precipitates from the solution: (Machine-translation by Google Translate, not legally binding)
ES455973A1977-02-161977-02-16A procedure for the obtaining of bromide from 2- (2-te-nil) -1,4-dimethyl pyridine. (Machine-translation by Google Translate, not legally binding)
ExpiredES455973A1
(en)
A process for the obtaining of 2- (3-methyl-2-furoil) 1, 4, 5-trimethyl-1, 2, 3, 6-tetrahydropiridine. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of a compound of the group formed by 7-rent- (and 7-cicloalquil-lower rent) 4- (4-piridyl) -2,2,3-trialquil-5-chromanol. (Machine-translation by Google Translate, not legally binding)