摘要 |
FIELD: organic chemistry, pharmacy. SUBSTANCE: invention relates to urea 4-oxocyclic compounds of the general formula (I) <EMI ID=0.293 HE=24 WI=66 TI=CHI> where X - unsaturated 6-membered carbocycle; R - optional covalent bond; Y - optional unsaturated 5-membered heterocycle or 6-membered carbocycle; when R is absent then X and Y are the condensed ring systems; when R - covalent bond then X and Y are ring systems bound through covalent bond; when Y is absent then R - covalent bond and X is bound with L through R; R<SB>1</SB>,R<SB>2</SB> and R<SB>3</SB> - chlorine, fluorine, bromine atoms, OH, alkyl-group independently or R<SB>1</SB>,R<SB>2</SB>,R<SB>3</SB> are absent; L - alkylimino-group where its nitrogen atom is bound with nitrogen atom at position 1,4 of oxocyclic ring-component of urea; R<SB>4</SB> - alkylene-group; A - alkyl or hydroxyalkyl, possibly substituted saturated 6-membered heterocycle or heteroalkyl containing two nitrogen atoms; R<SB>5</SB> is -CH<SB>2</SB>-; or its pharmaceutically acceptable salts or esters. Compounds of the formula (I) or a pharmaceutical composition based on said can be used for treatment of human or other mammals suffering with cardiac arrhythmia and/or cardiac fibrillation. EFFECT: improved method of patient treatment, enhanced effectiveness of the composition. 10 cl, 25 ex
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