Thiazolopyridine derivative, their production and cardiovascular treating agents containing them
申请人:TOA EIYO LTD.
公开号:EP0277701A1
公开(公告)日:1988-08-10
A 4,7-dihydroisothiazolo[5,4-b]pyridine derivative represented by the general formula
wherein
R1 represents an alkyl group which may be substituted,
R2 represents a hydrogen atom, a hydroxyl group, a benzyloxy group, a lower alkoxy group, a group of the formula
in which R3 and R4 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 R3 and R4 form a ring and represent a group of the formula
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, R5 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.
由通式表示的 4,7-二氢异噻唑并[5,4-b]吡啶衍生物
其中
R1 代表一个可被取代的烷基、
R2 代表氢原子、羟基、苄氧基、低级烷氧基、通式如下的基团
其中 R3 和 R4 相同或不同,各自代表一个氢原子、一个低级烷基、一个芳烷基、一个芳炔基、一个芳氧基烷基、一个芳酰胺基烷基、一个吡啶基烷基或一个苯唑基烷基,或 R3 和 R4 组成一个环并代表一个式中的基团。
其中 X 代表甲基、氮原子或氧原子,n 为 1 或 2 的整数,当 X 为甲基或氮原子时,R5 代表氢原子、低级烷基、低级羟烷基、芳基、芳氧基、芳烷基、呋喃基、吡啶基或二苯基甲烷基,其中每个基团均可被取代,以及
m为1至3的整数,或其酸加成盐。此外,还提供了生产上述衍生物和包含上述衍生物作为活性成分的心血管治疗剂的工艺。