Pyridazine derivatives active on the central nervous system, and medicaments in which they are present
US4721711A · kind A · utility
25Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the pyridazine derivatives of the formula: ##STR1## in which R.sub.1 is H, a substituted or unsubstituted phenyl group, a naphthyl group, a cyclohexyl group, a thien-2-yl group, a thien-3-yl group or an indol-3-yl group, R.sub.2 is H or an alkyl or phenyl group, R.sub.3 is H, an alkyl, or phenyl group in formula Ib and a cyano group in formula Ia, and Alk is (CH.sub.2).sub.n where n is 2, 3 or 4, or --CH.sub.2 --C.ident.C--, and X.sup.- is halide, a process for the preparation of the said products and their application as medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.