CARBOHYDRATE DERIVATIVES

摘要

The invention relates to a carbohydrate derivative having formula I (see fig I) wherein R1 is (1-4C)alkoxy; R2, R3 and R4 are independently (1-4C)alkoxy or OSO3-; 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 for treating or preventing thrombosis and for inhibiting smooth muscle cell proliferation.