Purine compounds and xanthine oxidase inhibitors
US5990118A · kind A · utility
1Cited by
0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Purine or triazolopurine compounds are disclosed represented by formula (I) or (II): ##STR1## wherein R.sup.1 and R.sup.4 represent each hydrogen, halogeno, hydroxy, mercapto, or amino; R.sup.2 represents alkyl or aryl; and R.sup.3 and R.sup.5 represent each hydrogen, alkyl, or aryl; and pharmaceutical compositions comprising these compounds as xanthine oxidase inhibitors, remedies for hyperuricemia, or remedies or preventive agents for gout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.