DERIVATIVE OF 2-CYANO-4-FLUOROPYRROLIDINE AND ITS SALT Russian patent published in 2006 - IPC C07D207/16 C07D401/12 C07D401/14 C07D403/12 C07D405/12 A61K31/4025 A61K31/4155 A61K31/439 A61K31/4545 A61P3/10 

FIELD: organic chemistry, medicine, biochemistry, pharmacy.

SUBSTANCE: invention relates to novel derivatives of 2-cyano-4-fluoropyrrolidine of the formula (I): or its pharmaceutically acceptable salt wherein A represents group of the general formula (II): wherein B represents carbonyl or sulfonyl group; R¹ represents (C₁-C₆)-alkyl that can be optionally substituted with group chosen from the group comprising -OH or atoms of fluorine, chlorine, bromine or iodine, phenyl optionally substituted with -CN or morpholinyl group, or if B represents carbonyl then R¹ can mean hydrogen atom; R² represents (C₁-C₆)-alkyl optionally substituted with hydroxyl group or hydrogen atom. Compounds of the formula (I) are inhibitors of enzyme dipeptidyl peptidase IV that allows its using in pharmaceutical composition that is designated for treatment of insulin-dependent diabetes mellitus (diabetes of type 1), non-insulin-dependent diabetes mellitus (diabetes of type 2), diseases associated with resistance to insulin or obesity.

EFFECT: valuable medicinal properties of compounds and pharmaceutical composition.

8 cl, 8 tbl, 11 ex