Thienotriazines
US4581448A · kind A · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1984 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Oct 10, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Fused tetracyclic compounds containing two thiophene rings, one pyridine ring and a triazine ring and which are useful as antiallergic agents are described herein. The compounds are prepared by the reaction of an appropriate substituted aminocarboxamine with sodium nitrite in an acid such as acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.