Diazepine antiallergy agents
US5008263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1990 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Mar 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Platelet activating factor antagonists of formula (I), (II) or (III): ##STR1## where A is optionally substituted benzene, pyridine, naphthalene, quinoline, thiophene, benzothiophene, pyrazole or isothiazole, PA1 X is O, S or NH PA1 Y is 1,4 phenylene or a group of formula ##STR2## R.sup.1 is H or optionally substituted C.sub.1 -C.sub.4 alkyl, R.sup.2 and R.sup.3 are H or C.sub.1 -C.sub.4 alkyl, PA1 B is an optionally fused 5- or 6-membered ring containing nitrogen atoms, PA1 Het is an optionally substituted 5-membered heterocyclic ring containing nitrogen or a pyridine ring, the ring optionally being fused to benzene or nitrogen-containing heterocyclic ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.