Hydrazinopyridazine compounds
US4711887A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D237/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hydrazinopyridiazine derivatives of the formula: ##STR1## wherein A is alkylene, wherein either R.sup.1 is hydrogen and R.sup.2 is hydrogen, alkoxycarbonyl or aralkoxycarbonyl, or R.sup.1 and R.sup.2 together form alkylidene, aralkylidene, alkoxycarbonylalkylidene or aralkoxycarbonylalkylidene, wherein either R.sup.3 and R.sup.4, which may be the same or different, each is hydrogen, halogen, hydroxy, amino, nitro, trifluoromethyl, carbamoyl, cyano, alkyl, hydroxyalkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkylthio, cycloalkoxy, alkenyloxy, alkynyloxy, alkanoyl, aryl, aryloxy or dialkylamino, or R.sup.3 and R.sup.4 together with the adjacent benzene ring form indanyl, 5,6,7,8-tetrahydronaphthyl, 5-oxo-5,6,7,8-tetrahydronaphthyl, indenyl, 5,8-dihydronaphthyl or naphthyl, wherein either R.sup.5 and R.sup.6, which may be the same or different, each is hydrogen or alkyl, or R.sup.5 and R.sup.6 together with the adjacent pyridazine ring form phthalazinyl, and wherein X is oxygen or --NHCO--, --NHCO--A.sup.1 -- or --NHCO--A.sup.1 --O-- wherein A.sup.1 is alkylene, acid-addition salts thereof, processes for their manufacture and pharmaceutical composition containing them. The compounds p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.