NOVEL ALLYLTHIOPYRIDAZINE DERIVATIVES AND PROCESS FOR PREPARING THE SAME
申请人:Seoul Pharm. Co., Ltd.
公开号:EP1058681B1
公开(公告)日:2003-05-07
US5942511A
申请人:——
公开号:US5942511A
公开(公告)日:1999-08-24
Allylthiopyridazine derivatives and process for preparing the same
申请人:Kwon; Soon Kyoung
公开号:US05942511A1
公开(公告)日:1999-08-24
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 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.