申请人:Kowa Co., Ltd.
公开号:US05883092A1
公开(公告)日:1999-03-16
The present invention is directed to a pyrimidine derivative of the following formula (1) or a salt of the derivative: ##STR1## \x9bwherein R.sup.1 represents a hydroxyl group, a lower alkoxy group, a phenyloxy group which may have a substituent, an aralkyloxy group which may have a substituent, or --NR.sup.2 R.sup.3 ; X represents an oxygen atom or N--R.sup.4 ; m is 2 or 3; and n is 1 or 2 (wherein each of R.sup.2 and R.sup.3, which are identical to or different from each other, represents a hydrogen atom, a hydroxyl group, a lower alkyl group which may have a substituent, a phenyl group which may have a substituent, an aralkyl group which may have a substituent, or a heterocyclic group which may have a substituent; R.sup.4 represents a lower alkyl group, a phenyl group, a formyl group, or a lower alkoxycarbonyl group)!, as well as to a medicine containing the derivative or salt as the active ingredient. The compounds exhibit strong binding inhibitory activity against endothelin having potent vasoconstrictive effect. Therefore, the compounds are effective as remedies for various diseases including circulatory diseases.
本发明涉及以下式(1)的嘧啶衍生物或其盐:其中R.sup.1代表羟基、较低的烷氧基、苯氧基(可能有取代基)、芳基氧基(可能有取代基)或--NR.sup.2 R.sup.3;X代表氧原子或N--R.sup.4;m为2或3;n为1或2(其中R.sup.2和R.sup.3中的每一个(它们相同或不同)代表氢原子、羟基、可能有取代基的较低烷基、可能有取代基的苯基、可能有取代基的芳基或可能有取代基的杂环基;R.sup.4代表较低烷基、苯基、甲酰基或较低烷氧羰基)!以及含有该衍生物或盐作为活性成分的药物。这些化合物对具有强烈血管收缩作用的内皮素具有强大的结合抑制活性。因此,这些化合物对包括循环系统疾病在内的各种疾病具有疗效。