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    • 1. 发明授权
    • Furoxanthone derivatives useful as diuretics
    • 呋喃西酮衍生物可用作利尿剂
    • US4661607A
    • 1987-04-28
    • US775240
    • 1985-09-12
    • Hiroshi KogaTakashi MoriTakashi DanMichitaka Akima
    • Hiroshi KogaTakashi MoriTakashi DanMichitaka Akima
    • A61K31/35C07D311/86C07D493/04
    • C07D493/04C07D311/86Y10S514/869
    • Xanthone derivatives of the formula (I): ##STR1## (wherein W, X, Y and Z which may be the same or different represent a hydrogen atom, a halogen atom or a lower alkyl group having 1 to 4 carbon atoms; A is hydrogen atom or together with Z forms a --CH.sub.2 -- group which binds to a phenyl carbon adjacent the phenyl carbon to which the oxygen of the group ##STR2## is attached to form a cyclic methylene chain; B is a hydroxymethyl group, a lower alkoxycarbonyl group having 1 to 4 carbon atoms, or a carboxyl group, provided that W is neither a hydrogen atom nor a 7-position methyl group when X, Y and Z are each a hydrogen atom, and A is a hydrogen atom and B is a carboxyl group or a lower alkoxycarbonyl group), as well as non-toxic salts thereof when B is a carboxyl group, and a process for preparing the same are disclosed.The compounds of formula (I) in accordance with the present invention are useful as diuretics having uricosuric activity and can be used in the treatment of edema or hypertension.
    • 式(I)的呫吨酮衍生物:其中W,X,Y和Z可以相同或不同,表示氢原子,卤素原子或碳原子数1〜4的低级烷基 ; A是氢原子或与Z一起形成-CH 2 - 基团,其结合与苯基碳相邻的苯基碳,所述基团的氧连接到其上以形成环状亚甲基链; B是羟甲基, 具有1至4个碳原子的低级烷氧基羰基或羧基,条件是当X,Y和Z各自为氢原子时,W既不是氢原子也不是7-位甲基,A为氢原子, B为羧基或低级烷氧基羰基),以及B为羧基时的无毒性盐,以及其制备方法。 根据本发明的式(I)化合物可用作具有尿酸活性的利尿剂,并且可用于治疗水肿或高血压。
    • 4. 发明授权
    • Furobenzisoxazole derivatives
    • 呋喃苯并恶唑衍生物
    • US4791209A
    • 1988-12-13
    • US860210
    • 1986-05-06
    • Haruhiko SatoHiroshi KogaTakashi DanEtsuro Onuma
    • Haruhiko SatoHiroshi KogaTakashi DanEtsuro Onuma
    • C07D498/04A61K31/42
    • C07D498/04
    • Novel furobenzisoxazole derivatives of the formula (I): ##STR1## (wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different represent a hydrogen atom, a halogen atom, or a lower alkyl group having 1-4 carbon atoms; R.sub.5 is a hydroxymethyl group, a carboxyl group or a lower alkoxy carbonyl group having 1-3 carbon atoms; and X is a sulfur atom or a --CH.dbd.CH-- group), as well as intoxic salts thereof when R.sub.5 is a carboxyl group, and process for preparing the same are disclosed.The derivatives of formula (I) and nontoxic salts thereof have hypotensive, uricosuric and diuretic activities and hence ae useful as therapeutics for treating hyperuricemia, edema and hypertension.
    • 式(I)的新型呋喃苯并异恶唑衍生物:其中R 1,R 2,R 3和R 4可以相同或不同,表示氢原子,卤素原子或具有1-4个碳原子的低级烷基 碳原子; R5是羟基甲基,羧基或具有1-3个碳原子的低级烷氧基羰基; X是硫原子或-CH = CH-基团),以及当其为R5时的中性盐 羧基,及其制备方法。 式(I)的衍生物及其无毒盐具有降血压,尿酸和利尿活性,因此可用作治疗高尿酸血症,水肿和高血压的治疗剂。