Antiallergic nitrogen bridge-head compounds
US4260612A · kind A · utility
3Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1978 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | Dec 11, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Antiallergic and antiasthmatic compounds of the formula ##STR1## of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3-carb oxylic acid and optically active antipodes and salts thereof are examples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.