carbohydrate derivative, pharmaceutical composition and use of the carbohydrate derivative

摘要

"carbohydrate derivative, pharmaceutical composition and use of the derivative". The invention relates to a carbohydrate derivative having the formula I wherein R1 is C1-4 alkoxy; R ^ 2 ^, R ^ 3 ^ and R ^ 4 ^ are independently C 1-4-alkoxy or oso-3-R -; the total number of sulfate groups is 4, 5 or 6 and the twisted lines represent bonds either above or below the plane of the six membered ring to which they are attached; or a pharmaceutically acceptable salt thereof. The compounds of the invention have antithrombotic activity and may be used in the treatment or prevention of thrombosis and for inhibition of smooth muscle cell proliferation.