申请人:Tanabe Seiyaku Co., Ltd.
公开号:US05246929A1
公开(公告)日:1993-09-21
Thiazine (or oxazine) derivatives of the formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 are both H or form a naphthalene ring together with the benzene ring; R.sup.3 and R.sup.4 are both H, or one of them is halogen and another is H; X is S or O; R.sup.5 and R.sup.6 are each i) H, ii) lower alkyl, iii) cycloalkyl, iv) substituted phenyl, v) naphthyl, vi) lower alkyl which is substituted by substituted or unsubstituted phenyl, or vii) S-containing heterocyclic group; one of Z.sup.1 and Z.sup.2 is O and another is H.sub.2 ; A is lower alkylene; R.sup.7 and R.sup.8 are each i) H, ii) lower alkyl, iii) lower alkenyl, iv) lower alkynyl, or v) lower alkyl which is substituted by substituted or unsubstituted phenyl, or both form together N-containing heterocyclic group; provided that when both of R.sup.1 and R.sup.2 are H, Z.sup.2 is O and either one of R.sup.5 and R.sup.6 is substituted phenyl, naphthyl or S-containing heterocyclic group, or their salts, which have calcium antagonistic activity within the cerebral tissues and are useful for prophylaxis and treatment of ischemic encephalopathia and/or cerebral neurocyte dyscrasia, and process for preparing said compounds.
Thiazine(或oxazine)衍生物的化学式[I]:##STR1##其中R.sup.1和R.sup.2都是H或与苯环一起形成萘环;R.sup.3和R.sup.4都是H,或其中一个是卤素,另一个是H;X是S或O;R.sup.5和R.sup.6分别是i)H,ii)低烷基,iii)环烷基,iv)取代苯基,v)萘基,vi)被取代或未取代的苯基取代的低烷基,或vii)含S的杂环基;Z.sup.1和Z.sup.2中的一个是O,另一个是H.sub.2;A是低烷基;R.sup.7和R.sup.8分别是i)H,ii)低烷基,iii)低烯基,iv)低炔基,或v)被取代或未取代的苯基取代的低烷基,或两者一起形成含N的杂环基;前提是当R.sup.1和R.sup.2都是H时,Z.sup.2是O,R.sup.5和R.sup.6中的任何一个是取代苯基,萘基或含S的杂环基时,或其盐,在脑组织中具有钙拮抗活性,用于预防和治疗缺血性脑病和/或脑神经元失调,并提供制备所述化合物的方法。