| 摘要 |
A compound represented by the following formula (I) is used as a xanthine oxidase inhibitor: in which R1 is phenyl or pyridyl each optionally having, as a substituent, C1-8 alkyl, C1-8 haloalkyl, C1-8 alkoxy, carboxyl, halogeno, hydroxyl, nitro, cyano, amino, etc.; R2 is cyano, nitro, etc.; X is oxygen, sulfur, etc.; and Y is sulfur, NH, etc.
|
