Nitrogen bridgehead compounds having anti-allergic effect
US4234586A · kind A · utility
8Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 11, 1978 |
| Grant date | Nov 18, 1980 |
| Priority date | — |
| Expiry date | Dec 11, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Antiallergic and particularly antiasthmatic compounds of the formula: ##STR1## of which 9-phenylhydrazono-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimi dine-3-carboxylic acid is an especially significant example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.