Allylthiopyridazine derivatives and process for preparing the same
US5942511A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The, present invention relates to a novel allylthiopyridazine derivative represented by formula (I) which exhibits a superior effect for prevention and treatment or hepatic diseases induced by toxic substances and for protection of human tissues from radiation: ##STR1## or a pharmaceutically acceptable salt thereof, in which R.sub.1 represents halogen atom, lower alkoxy, dialkylaminoalkoxy, hydroxyalkoxy, phenoxy substituted or unsubstituted with lower alkyl, benzyloxy, or phenyl, and PA1 R.sub.2 and R.sub.3 independently of one another represent hydrogen or lower alkyl, or R.sub.2 and R.sub.3 together with carbon atom to which they are attached can form a saturated or unsaturated 6-membered ring, provided that R.sub.2 and R.sub.3 are other than hydrogen when R.sub.1 is chloro; and to a process for preparing thereof and a pharmaceutical composition containing the same as an effective component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.