申请人:SANTEN PHARMACEUTICAL CO., LTD.
公开号:EP0738711A1
公开(公告)日:1996-10-23
The present invention relates to compounds represented by the formula [I] and salts thereof,
wherein R1 and R4 each represents a carboxyl group which can be converted into ester, amide or hydroxamic acid; R2 represents a lower alkyl group or a phenyl-lower alkyl group; R3 represents a hydrogen atom, a lower alkyl group, an amino-lower alkyl group, a lower alkylamino-lower alkyl group, a hydroxy-lower alkyl group, a mercapto-lower alkyl group, a carboxy-lower alkyl group, a lower alkoxycarbonyl-lower alkyl group, an imidazolyl-lower alkyl group, an indolyl-lower alkyl group, (substituted) phenyl group, (substituted) phenyl-lower alkyl group, (substituted) naphtyl group, or (substituted) naphtyl-lower alkyl group.
The compounds of the present invention have inhibitory effects on endopeptidase 24.11 and are useful as therapeutic agents for cardiovascular disease such as heart failure and hypertension, renal disease such as renal failure, gastroenteric disorder such as diarrhea and hyperchlorhydria, endocrine and metabolic disease such as obesity, and autoimmune disease such as rheumatism, and as analgestics for myosalgia, migraine.
本发明涉及式 [I] 所代表的化合物及其盐类、
其中 R1 和 R4 分别代表可转化为酯、酰胺或羟肟酸的羧基;R2 代表低级烷基或苯基-低级烷基;R3 代表氢原子、低级烷基、氨基-低级烷基、低级烷氨基-低级烷基、羟基-低级烷基、巯基-低级烷基、羧基-低级烷基、低级烷氧羰基-低级烷基、咪唑基-低级烷基、吲哚基-低级烷基、(取代)苯基、(取代)苯基-低级烷基、(取代)萘基或(取代)萘基-低级烷基。
本发明的化合物对内肽酶 24.11 具有抑制作用,可作为心血管疾病(如心力衰竭和高血压)、肾脏疾病(如肾功能衰竭)、肠胃疾病(如腹泻和高氯血症)、内分泌和代谢疾病(如肥胖)以及自身免疫性疾病(如风湿病)的治疗剂,也可作为肌痛、偏头痛的镇痛剂。