title: The synthesis and xanthine oxidase inhibitory activity of pyrazolo(3,4-d)pyrimidines.
mesh_terms: D000818:Animals; D002417:Cattle; D008892:Milk / Q000201:enzymology; D011720:Pyrazoles / Q000138:chemical synthesis / Q000494:pharmacology*; D011743:Pyrimidines / Q000138:chemical synthesis / Q000494:pharmacology*; D013329:Structure-Activity Relationship; D014969:Xanthine Oxidase / Q000037:antagonists & inhibitors*
chemical_list: D011720:Pyrazoles; D011743:Pyrimidines; D014969:Xanthine Oxidase