申请人:Bayer Aktiengesellschaft
公开号:US04061653A1
公开(公告)日:1977-12-06
1-Substituted-3-amino-pyrazol-5-ones of the formula ##STR1## or a pharmaceutically acceptable non-toxic salt thereof wherein R is A. PHENYL SUBSTITUTED BY ONE OR TWO IDENTICAL OR DIFFERENT SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ALKYL, PHENYL, TRIFLUOROMETHYL, TRIFLUOROMETHOXY, NITRO, CYANO, FLUORO, BROMO, IODO, LOWER ALKYLAMINO, A CARBONAMIDO MOIETY OF THE FORMULA ##STR2## and a sulphonamido moiety of the formula ##STR3## wherein R.sub.1 and R.sub.2 are each hydrogen or straight or branched chain alkyl of 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached may be linked together to form a 5-, 6- or 7-membered heterocyclic ring wherein the nitrogen atom is the only heteroatom or wherein oxygen is also present as a ring member; B. phenyl having an annellated branched or un-branched, saturated or unsaturated, 5-, 6- or 7-membered isocyclic or heterocyclic ring wherein the heterocyclic ring has one or more oxygen heteroatoms and/or one or more sulphur heteroatoms, said phenyl ring being otherwise unsubstituted or chlorosubstituted; C. phenyl substituted by SO.sub.n -alkyl wherein n is zero, 1 or 2, straight or branched chain alkoxy or - O -(CH.sub.2).sub.n',-N(alkyl).sub.2 wherein n' is 2 or 3; D. phenyl substituted by 2 identical substituents selected from the group consisting of alkoxy of 1 to 4 carbon atoms and trifluoromethyl; E. phenyl having 2 different substituents selected from the group consisting of alkyl, phenyl, halogen, alkoxy, trifluoromethyl, trifluoromethoxy, lower alkylamino, nitro, cyano, --SO.sub.n --alkyl wherein n is zero, 1 or 2, a carbonamido moiety of the formula ##STR4## and a sulphonamido of the formula ##STR5## wherein R.sub.3 and R.sub.4 are each hydrogen or alkyl; F. TRICHLOROPHENYL; G. naphthyl having 1 or 2 identical or different substituents selected from the group consisting of halogen and alkyl; or h. unsubstituted .beta.-naphthyl, anthyryl or phenanthryl, are produced by reacting a hydrazine of the formula R--CH.sub.2 --NH--NH.sub.2 wherein R is as above defined with an acetic acid derivative of the formula ##STR6## wherein X is hydroxy, alkoxy, aralkoxy, amino or alkylamino; and either a. Y' is hydrogen and Y" is cyano; b. Y' and Y" together form the moiety ##STR7## wherein Y is alkoxy, aryloxy, aralkoxy, alkylmercapto, aralkylmercapto or amino. The 1-Substituted-3-amino-pyrazol-5-ones and their salts exhibit strong diuretic, saluretic and anti-hypertensive effects.
式为##STR1##的1-取代-3-氨基吡唑-5-酮或其药学上可接受的无毒盐,其中R为A.苯基,其被一个或两个相同或不同的取代基所取代,所述取代基选自群组,包括烷基,苯基,三氟甲基,三氟甲氧基,硝基,氰基,氟基,溴基,碘基,低烷基氨基,式为##STR2##的碳酰胺基团和式为##STR3##的磺酰胺基团,其中R.sub.1和R.sub.2分别为氢或1至4个碳原子的直链或支链烷基,或R.sub.1和R.sub.2与它们所连接的氮原子一起可连接成为5、6或7个成员的杂环环,其中氮原子是唯一的杂原子,或其中氧也作为环成员存在;B.苯基,其具有一个或多个氧杂原子和/或一个或多个硫杂原子的饰环支链或不支链,饱和或不饱和,5、6或7个成员的同环或杂环环,所述苯环除氯取代外未取代;C.苯基,其被SO.sub.n-烷基取代,其中n为零、1或2,直链或支链烷氧基或-O-(CH.sub.2).sub.n',-N(烷基).sub.2,其中n'为2或3;D.苯基,其被两个相同的取代基所取代,所述取代基选自1至4个碳原子的烷氧基和三氟甲基的群组;E.苯基,其具有两个不同的取代基,所述取代基选自烷基,苯基,卤素,烷氧基,三氟甲基,三氟甲氧基,低烷基氨基,硝基,氰基,--SO.sub.n-烷基,其中n为零、1或2,式为##STR4##的碳酰胺基团和式为##STR5##的磺酰胺基团,其中R.sub.3和R.sub.4分别为氢或烷基;F.三氯苯基;G.萘基,其具有1或2个相同或不同的取代基,所述取代基选自卤素和烷基;或h.未取代的β-萘基,蒽基或菲基,通过将式为R-CH.sub.2-NH-NH.sub.2的肼(其中R如上所定义)与式为##STR6##的乙酸衍生物反应而制得,其中X为羟基,烷氧基,芳基氧基,氨基或烷基氨基;并且a. Y'为氢,Y"为氰基;b. Y'和Y"一起形成##STR7##的基团,其中Y为烷氧基,芳氧基,芳基烷氧基,烷硫基,芳基烷硫基或氨基。1-取代-3-氨基吡唑-5-酮及其盐表现出强烈的利尿、盐利尿和降压作用。