2,4-[1H,3H,5H]-(1)-Benzopyrano-[2,3-d]-pyrimidinediones and their use as anti-allergy agents
US4272535A · kind A · utility
9Cited by
3References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel 2,4-(1H,3H,5H)-(1)benzopyrano-(2,3-d)-pyrimidinediones of the formula ##STR1## and their pharmaceutically acceptable salts are useful in the treatment of such diseases as asthma, allergic rhinitis, urticaria and ulcerative colitis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.