申请人:Santen Pharmaceutical Co., Ltd.
公开号:US05891912A1
公开(公告)日:1999-04-06
The present invention related to compounds represented by the following formula (I) and salts thereof, ##STR1## wherein R.sup.1 and R.sup.4 each represents a carboxyl or a carboxyl which is converted into an ester, an amide or hydroxamic acid; R.sup.2 represents a lower alkyl or a phenyl-lower alkyl; R.sup.3 represents a hydrogen atom, a lower alkyl, an amino-lower alkyl, a lower alkylamino-lower alkyl, a hydroxy-lower alkyl, a mercapto-lower alkyl, a carboxy-lower alkyl, a lower alkoxycarbonyl-lower alkyl, an imidazolyl-lower alkyl, an indolyl-lower alkyl, a (substituted) phenyl group, a (substituted) phenyl-lower alkyl group, a (substituted) naphthyl group, or a (substituted) naphtyl-lower 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 an analgesics for myosalgia and migraine.
本发明涉及以下式(I)及其盐所代表的化合物,其中R.sup.1和R.sup.4分别代表羧基或转化为酯、酰胺或羟肟酸的羧基;R.sup.2代表较低的烷基或苯基-较低的烷基;R.sup.3代表氢原子、较低的烷基、氨基-较低的烷基、较低的烷氨基-较低的烷基、羟基-较低的烷基、巯基-较低的烷基、羧基-较低的烷基、较低的烷氧羰基-较低的烷基、咪唑基-较低的烷基、吲哚基-较低的烷基、(取代的)苯基、(取代的)苯基-较低的烷基、(取代的)萘基或(取代的)萘基-较低的基团。本发明的化合物对内肽酶24.11具有抑制作用,并可用作治疗心衰和高血压等心血管疾病、肾衰竭等肾脏疾病、腹部疾病,如腹泻和高胃酸症,内分泌和代谢疾病,如肥胖,以及自身免疫疾病,如风湿病,并作为肌肉疼痛和偏头痛的止痛药。