FIELD: organic chemistry, pharmacy. SUBSTANCE: invention describes the novel derivatives of pyrone of the general formula (I) 
where X, A, A1, W, W1-W3,R3,R4, m and n have values given in p. 1 of the invention claim. Proposed substances can present active component of pharmaceutical composition showing antiviral and antibacterial activity. Invention describes also method of treatment of patients with infection or disease caused by retrovirus by administration of pyrone compounds of the above indicated formula (I) taken in the therapeutically effective amount. EFFECT: valuable antiviral properties, enhanced effectiveness of treatment. 18 cl, 3 tbl, 225 ex
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