PROCESSO PARA A PREPARACAO DE NOVOS DERIVADOS DE BENZOPIRANO E DE COMPOSICOES FARMACEUTICAS QUE OS CONTEM
New benzopyran derivatives of formula: (I) in which R1 is hydrogen, halogen, hydroxy, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl) amino or acylamino, X is nitrogen or a >CH-radical R is a radical of formula: in which A denotes a single bond or methylene or, when X is nitrogen, A...
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Main Authors | , |
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Format | Patent |
Language | Portuguese |
Published |
30.06.1989
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | New benzopyran derivatives of formula: (I) in which R1 is hydrogen, halogen, hydroxy, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl) amino or acylamino, X is nitrogen or a >CH-radical R is a radical of formula: in which A denotes a single bond or methylene or, when X is nitrogen, A may denote carbonyl, and R2 and R3, which are identical or different, are hydrogen, halogen, hydroxy, alkyl, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl)amino, acylamino, sulphamoyl or cyano, or, when they are adjacent, together form a methylenedioxy or ethylenedioxy radical, or else R is pyridyl or 2(2H)-benzimidazolonyl if X denotes >CH-, and R' and R'' are identical and are hydrogen or alkyl, their isomeric forms and mixtures thereof, and their acid addition salts, can be used as antiarrhythmic and antifibrillation agents. |
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Bibliography: | Application Number: PT19880088083 |