Tetrazole containing naphthyridine-3-carboxamides
US4024255A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Sep 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compounds of the general formulae I and II and pharmaceutically acceptable salts thereof: ##STR1## in which: R.sub.1 represents a hydrogen atom, a halogen atom, an alkenyl or alkyl group; or a group OR.sub.3 or NR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 which may be the same or different and may represent a hydrogen atom, or an alkenyl group, or an alkyl group which alkyl group may optionally be substituted by one or more hydroxy, alkoxy, acyloxy, aryl, amino, alkylamino, dialkylamino, diaralkylamino or alkylaralkylamino groups; or R.sub.3 and R.sub.4 together with the nitrogen atom form a 5 or 6 membered heterocyclic ring that may optionally contain other hetero atoms. PA1 R.sub.2 has the same meanings as R.sub.3. The compounds have utility for the treatment of conditions in which combination of an antigen with a reaginic antibody is primarily responsible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.