申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US05283244A1
公开(公告)日:1994-02-01
The present invention is a pyrazine derivative which has glutamate receptor antagonizing activity, represented by formula: ##STR1## wherein Z represents C or N, provided that two Zs are not N atoms at the same time; R.sup.1 represents: ##STR2## wherein ##STR3## represents ##STR4## R.sup.6 represents H or alkyl, and R.sup.7 and R.sup.8 represent each H, alkyl, nitro or phenyl, or alternatively R.sup.7 and R.sup.8 are combined together to represent butadienylene or 1,4-butylene; R.sup.2 and R.sup.3 represent each H, F, cyano, acyl, nitro, alkyl, morpholino or one of said species of R.sup.1 ; R.sup.4 and R.sup.5 represent each H, hydroxyl, alkyl, cycloalkyl, heterocycle, phenyl, or Y-substituted alkyl; Y represents hydroxyl, acyloxy, F-substituted methyl, cycloalkyl, tetrahydrofuryl, carboxyl, alkoxycarbonyl or ##STR5## R.sup.9 and R.sup.10 represent each H or alkyl, or alternatively R.sup.9 and R.sup.10 are combined together to represent a 5- or 6-membered cyclic group which may contain oxygen atom(s).
本发明是一种吡嗪衍生物,具有谷氨酸受体拮抗活性,其表示为式:##STR1##其中Z代表C或N,前提是两个Z不同时是N原子;R.sup.1代表:##STR2##其中##STR3##代表##STR4##R.sup.6代表H或烷基,R.sup.7和R.sup.8分别代表H、烷基、硝基或苯基,或者R.sup.7和R.sup.8结合在一起表示丁二烯基或1,4-丁二烯基;R.sup.2和R.sup.3分别代表H、F、氰基、酰基、硝基、烷基、吗啉基或R.sup.1的一种;R.sup.4和R.sup.5分别代表H、羟基、烷基、环烷基、杂环烷基、苯基或Y-取代的烷基;Y代表羟基、酰氧基、F-取代的甲基、环烷基、四氢呋喃基、羧基、烷氧羰基或##STR5##R.sup.9和R.sup.10分别代表H或烷基,或者R.sup.9和R.sup.10结合在一起表示可能含氧原子的5-或6-成员环基。