COMPOUND, PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND PHARMACEUTICAL COMPOSITION Russian patent published in 1997 - IPC

FIELD: pharmaceutical industry. SUBSTANCE: present invention describes compounds of general formula I wherein at least one of R¹, R², R³ or R⁴ is wherein L is O or CH₂; m is integer of 0 to 14 inclusive; n is integer of 0 to 14; p and q are independently integers of 0 to 10; each of R¹, R², R³ and R⁴ is independently -C(O)-(CH₂)_z, -C(O)-(CH₂)_xCH₃;, -(CH₂)_z+1-C(OH)H-(CH₂)_xCH₃, -C(O)-(CH₂)_z-G and (CH₂)_xCH₃, wherein G is -S-(O)-; X is integer of 0 to 14; Z is integer of 0 to 10; each of A¹ and A² is independently OH, OCH₃, -OP(O)(OH)₂, -O-(CH₂)_d+1-OPO(OH)₂, wherein d is independently integer of 0 to 5; X is (CH₂)_tO(CH₂)_vCH₃, (CH₂)_tOPO(OH)₂, wherein t and v are integers of 0 to 14; Y is OH, O(CH₂)_wCH₃,, halogen atom, -OC(O)-(CH₂)_wCH₃ wherein W is integer of 0 to 14, and pharmaceutically acceptable salts thereof. Compound I and pharmaceutically acceptable salts thereof have antiviral activity. Present invention describes intermediate compound and pharmaceutical composition. EFFECT: improved properties of the pharmaceutical composition. 21 cl