Nitric oxide donating hypoglycemic compounds, their preparation and use

The present invention belongs to the technical field hypoglycemic drugs, there is provided a pharmaceutically NO donor compound and a pharmaceutically acceptable salt thereof having the general structure Ⅰ, wherein the defined specification R1, R2, R3's. The present invention also relates to a method for preparing the above compounds, and also discloses to the pharmaceutically active compound or a pharmaceutically acceptable salt thereof as an active ingredient of pharmaceutical compositions, and their use in the manufacture of a medicament hypoglycemic.