Triazoloquinazoline and pyrazolotriazolopyrimidine derivatives, medicinal compositions, adenosine a3 receptor affinity agents, ocular tension lowering agents, preparations for preventing and treating glaucoma and method of lowering ocular tension

摘要

The present invention provides triazoloquinazoline and pyrazolotriazolopyrimidine derivatives represented by the following general formula (1): wherein R<1 >and R<2 >represent the same groups as those described in the description; and A represents a pyrazole or benzene ring which is optionally substituted with the groups described in the description. These derivatives exhibit an affinity to an adenosine A3 receptor and also have an intraocular-pressure reducing effect, and are useful for prevention or treatment of glaucoma.