Antiallergic (1H-tetrazol-5-yl)tetrazolo[1,5-a]quinolines and derivatives thereof
US4496569A · kind A · utility
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13Claims
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Key dates
| Filing date | Mar 25, 1983 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Mar 25, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
(1H-Tetrazol-5-yl)tetrazolo[1,5-a]quinolines and related compounds which are useful as antiallergic agents are described herein. The compounds are prepared by the reaction of an appropriate halocyanoquinoline or isoquinoline with ammonium chloride and an azide such as sodium azide in an inert solvent such dimethylformamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.