New derivatives of pyridazine active on the central nervous system
US4710499A · kind A · utility
15Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1984 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Aug 7, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D237/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to derivatives of pyridazine of formula: ##STR1## in which R.sub.1 is alkyl or a phenyl group and R.sub.2 is H or R.sub.1 and R.sub.2 form, with the carbon atoms to which they are attached, a benzene cycle, R.sub.3 is H or phenyl and R.sub.4 is ##STR2## in which R.sub.5 is H or CH.sub.3 and R.sub.6 is H, OH, OR or OCOR; it also relates to a process for preparing the products of formula (I) and to the drugs containing at least one of said products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.