3-DESOXYOLIGOSACCHARIDE DERIVATIVES, METHOD OF PREPARING THEREOF (VARIANTS), INTERMEDIATE COMPOUNDS, AND PHARMACEUTICAL COMPOSITION Russian patent published in 1999 - IPC

FIELD: pharmaceutical industry. SUBSTANCE: new 3-desoxyoligosaccharide derivatives of formula I wherein X is radical of formula (B) or radical of formula (С), Y is radical of formula (D), R₁, R₃, R₅, R₇, R₈, R₁₀, R₁₃, identical or different, are each linear or branched alkoxy radical having 1-6 carbon atoms; or radical OSO-3

; R₂, R₄, R₆, R₉, R₁₁, identical or different, are each hydrogen atom, linear or branched alkoxy radical having 1-6 carbon atoms, or radical OSO-3; R₁₂ is hydroxy radical or radical OSO-3; provided that at least one of R₂ or R₄ or R₆ or R₉ or R₁₁ is hydrogen atom in the form of pharmaceutically acceptable salts and suitable acids. Said compounds have very great anti-factor Xa activity and great affinity to АТ-Ш. They are readily adsorbable in alimentary canal and are introduced orally. Also described are methods of preparing said compounds, intermediate compounds, and pharmaceutical composition based on compounds I. EFFECT: improved properties of the pharmaceutical composition. 15 cl, 19 ex