申请人:JANSSEN PHARMACEUTICA N.V.
公开号:EP0211457A2
公开(公告)日:1987-02-25
Novel (4-substituted-piperazinyl)pyridazines of formula
wherein R is hydrogen, halo, C1-6alkyloxy, hydroxy or phenyl;
m is the integer 2 or 3;
R¹, R², R³ and R⁴ are, each independently, hydrogen, or C1-6alkyl;
or where R³ and R⁴ are substituted on a different carbon atom, R³ and R⁴ taken together, may form a bivalent radical -CH₂-CH₂-;
R⁵ is (aryl)C2-6alkenyl, (aryl)C2-6alkynyl, (aryl)(hydroxy)C1-6alkyl or (aryl)(oxo)C1-6alkyl;
the N-oxide forms, the pharmaceutically acceptable acid addition salts and the possible stereochemically isomeric forms, which compounds are analgesic and antitussive agents; pharmaceutical compositions containing such compounds as an active ingredient and methods of preparing said compounds and pharmaceutical compositions.
新型 (4-取代哌嗪基)哒嗪,其式如下
其中 R 是氢、卤素、C1-6-烷氧基、羟基或苯基;
m 是整数 2 或 3;
R¹、R²、R³ 和 R⁴ 各自独立为氢或 C1-6 烷基;
或当 R³ 和 R⁴ 在不同碳原子上被取代时,R³ 和 R⁴ 合在一起可形成二价基 -CH₂-CH₂-;
R⁵ 是(芳基)C2-6烯基、(芳基)C2-6炔基、(芳基)(羟基)C1-6烷基或(芳基)(氧代)C1-6烷基;
N-氧化物形式、药学上可接受的酸加成盐以及可能的立体化学异构形式,这些化合物是镇痛和止咳剂;含有这些化合物作为活性成分的药物组合物以及制备所述化合物和药物组合物的方法。