申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US04988681A1
公开(公告)日:1991-01-29
A phosphinic acid derivative represented by the general formula [I], or a pharmaceutically acceptable salt thereof, ##STR1## wherein R.sup.1 represents an alkyl, cycloalkyl or aralkyl group which may be substituted; R.sup.2 and R.sup.5 may be identical or different, and each represents a hydrogen atom, or an ester residue capable of forming a non-toxic ester hydrolyzable in vivo; and A represents a group of the formula ##STR2## wherein R.sup.3 represents an alkyl group, a group of the formula ##STR3## wherein R.sup.30 represents a halogen atom, a carboxyl group, a hydroxyl group, a cycloalkyl group which may be substituted, an aryl group which may be substituted, an arylthio group, a heteroarylthio group which may be substituted, an alkylthio group which may be substituted, an amino group which may be substituted, or a lower alkoxycarbonyl group; R.sup.31 represents a hydrogen atom or a lower alkyl group; and n represents an integer of 0 to 6, a cycloalkyl group which may be substituted or an aryl group which may be substituted; and the double bond at A has a Z-configuration, or a group of the formula ##STR4## wherein R.sup.4 represents a cycloalkyl group which may be substituted. Said phosphinic acid derivative is useful for reducing renal toxicity induced by a carbapenem or penem antibiotic and for inhibiting dipeptidase.
一种由通式[I]表示的膦酸衍生物,或其药学上可接受的盐,其中:R1代表一种可被取代的烷基、环烷基或芳基烷基;R2和R5可以相同也可以不同,分别代表氢原子或能够在体内水解成非毒性酯的酯基残基;A代表式的一个基团:其中R3代表烷基、式中的基团:其中R30代表卤素原子、羧基、羟基、可被取代的环烷基、可被取代的芳基、芳基硫基、可被取代的杂环芳基硫基、可被取代的烷基硫基、可被取代的氨基或低级烷氧羰基基团;R31代表氢原子或低级烷基;n代表0到6的整数、可被取代的环烷基或可被取代的芳基;并且A上的双键具有Z构型,或者式的一个基团:其中R4代表可被取代的环烷基。该膦酸衍生物可用于减轻由碳青霉烯或青霉烯类抗生素引起的肾毒性,并抑制二肽酶。