| abstract |
A novel TAFIa inhibitor compound and a method for using the same are provided. Formula (I): [Wherein, R 1 represents a hydrogen atom, a group represented by the formula COR 4 , or a dimerized disulfide half portion. R 2 represents a group represented by the formula NR 5 R 6 , or R 2 represents a nitrogen-containing heterocyclic group, aryl group or heteroaryl group, and R 3 represents a hydrogen atom or an alkyl group. ], Its optical isomers, and its addition salt pharmaceuticals with pharmaceutically acceptable acids. [Selection figure] None |