申请人:TEIKOKU HORMONE MFG. CO., LTD.
公开号:EP1002797A1
公开(公告)日:2000-05-24
4,5-Dihydro-[1H]-benz[g]indazole-3-carboxylic acid derivatives represented by the following formula, or their salts, have excellent antagonism to endothelin receptors and are useful as preventives or remedies for diseases such as hypertension, angina pectoris, myocardial infarction, brain infarction, cerebrovascular contraction, renal insufficiency, hepatic dysfunction, arteriosclerosis and post-PTCA restenosis.
wherein Ar represents an optionally substituted aryl group, and R1 represents a hydrogen atom, an optionally substituted lower alkyl group, an optionally substituted aryl group, an optionally substituted cycloalkyl group or an optionally substituted heterocyclic group.
下式所代表的 4,5-二氢-[1H]-苯并[g]吲唑-3-羧酸衍生物或其盐类对内皮素受体具有极好的拮抗作用,可作为高血压、心绞痛、心肌梗塞、脑梗塞、脑血管收缩、肾功能不全、肝功能障碍、动脉硬化和 PTCA 术后再狭窄等疾病的预防或治疗药物。
其中 Ar 代表任选取代的芳基,R1 代表氢原子、任选取代的低级烷基、任选取代的芳基、任选取代的环烷基或任选取代的杂环基。