申请人:Toa Eiyo, Ltd.
公开号:US04874760A1
公开(公告)日:1989-10-17
A 4,7-dihydroisothiazole[5,4-b]pyridine derivative represented by the general formula ##STR1## wherein R.sup.1 represents an alkyl group which may be substituted, R.sup.2 represents a hydrogen atom, a hydroxyl group, a benzyloxy group, a lower alkoxy group, a group of the formula ##STR2## in which R.sup.3 and R.sup.4 are identical or different and each represents a hydrogen atom, a lower alkyl group, an aralkyl group, an aralkynyl group, an aryloxyalkyl group, an arylaminoalkyl group, a pyridylalkyl group or a benzazolylalkyl group, or R.sup.3 and R.sup.4 form a ring and represent a group of the formula ##STR3## where X represents a methine group, a nitrogen atom or an oxygen atom, n is an integer of 1 or 2, and when X is a methine group or a nitrogen atom, R.sup.5 represents a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group, an aryl group, an aryloxy group, an aralkyl group, a furoyl group, a pyridyl group or a diphenylmethane group each of which group may be substituted, and m is an integer of 1 to 3, or an acid addition salt thereof. Processes for producing said derivative and a cardiovascular treating agent comprising said derivative as an active ingredient are also provided.
一种由通式##STR1##所代表的4,7-二氢
异噻唑[5,4-b]
吡啶衍生物,其中R.sup.1代表可以被取代的烷基基团,R.sup.2代表氢原子、羟基、苄氧基、较低的烷氧基、通式##STR2##中R.sup.3和R.sup.4相同或不同,每个代表氢原子、较低的烷基基团、芳基基团、芳基炔基团、芳基氧基烷基团、芳基
氨基烷基团、
吡啶基烷基团或
苯并噻唑基烷基团,或R.sup.3和R.sup.4形成一个环,并代表通式##STR3##中的一个基团,其中X代表亚甲基基团、氮原子或氧原子,n是1或2的整数,当X是亚甲基基团或氮原子时,R.sup.5代表氢原子、较低的烷基基团、较低的羟基烷基基团、芳基、芳基氧基、芳基烷基、
呋喃基、
吡啶基或二苯
甲烷基团,每个基团均可被取代,m是1到3的整数,或其酸盐。还提供了生产该衍
生物的方法以及包含该衍
生物作为活性成分的心血管治疗剂。