Patent ID: RE43748

Claim:
A nitrogen-containing heterocyclic carboxamide compound represented by the following formula wherein: each occurrence of R 3 Râ€² is independently a halogen atom , or a hydroxyl group, or an oxide group which is linked to a carbon atom of the nitrogen-containing heterocycle in said formula ; R 1 represents O or OH; R 2 is selected from the group consisting of a hydrogen atom, an acyl group, an optionally substituted carbamoylalkyl group, and an optionally substituted carboxyalkyl group; n is 1 , or 2 , 3, or 4 ; and the broken line in the ring represents a single bond when R 1 is O and a double bond when R 1 is OH; and the broken line between R 1 and the ring is a single bond when R 1 is OH and a double bond when R 1 is O; or a pharmaceutically acceptable salt thereof.