Azapurinones
US4052390A · kind A · utility
18Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1975 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | May 6, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
8-Azapurin-6-ones substituted in the 2-position by a phenyl group carrying in a meta-position a sulphamoyl substituent, and also a hydroxy, alkoxy or alkylthio substituent para with respect to the said sulphamoyl grouping, and pharmaceutically acceptable salts thereof, possess pharmacological properties useful in the treatment of allergic respiratory disorders, for example allergic bronchial asthma.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.