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    • 8. 发明授权
    • Orally active iron (III) chelators
    • 口服活性铁(III)螯合剂
    • US06448273B1
    • 2002-09-10
    • US09451112
    • 1999-11-30
    • Robert Charles HiderGary Stuart TilbrookZudong Liu
    • Robert Charles HiderGary Stuart TilbrookZudong Liu
    • A61K314412
    • C07D213/69C07D213/81C07D309/40C07D417/06C07D493/04
    • A compound of formula I wherein R is hydrogen or a group that is removed by metabolism in vivo to provide the free hydroxy compound, R1 is an aliphatic hydrocarbon group or an aliphatic hydrocarbon group substituted by a hydroxy group or a carboxylic acid ester, sulpho acid ester or a C1-6 alkoxy, C6-aryloxy or C7-10aralkoxy ether thereof, and R3 is selected from hydrogen and C1-6 alkyl; characterized in that R2 is selected from groups (i) —CONH—R5 (ii)—CR6R6OR7 (iii) —CONHCOR5 and (iv) —CON(CnH2n+1)2 R4 is selected from hydrogen, C1-6 alkyl and a group as described for R2; R5 is selected from hydrogen and optionally hydroxy, alkoxy, aryloxy or aralkoxy substituted C1-13 alkyl, aryl and C7-13 alkyl R6 is independently selected from hydrogen and C1-13 alkyl, R7 is selected from hydrogen, C1-13 alkyl, aryl and C7-13 aralkyl or a pharmaceutically acceptable salt of any such compound and CnH2n+1 is C1-6alkyl with the proviso that the compound is not one of 1-ethyl-2-(1′-hydroxyethyl)-3-hydroxypyridin-4-one and 1-methyl-2-hydroxymethyl-3-hydroxypyridoin-4-one.
    • 式I化合物,其中R是氢或通过体内代谢除去以提供游离羟基化合物的基团,R 1是脂族烃基或被羟基或羧酸酯取代的脂族烃基,磺酸酯或 C 1-6烷氧基,C 6芳氧基或C 7-10芳烷氧基醚,R 3选自氢和C 1-6烷基;其特征在于R 2选自(ⅰ)-CONH-R5(ⅱ)-CR6R6OR7(ⅲ) - CONHCOR 5和(iv)-CON(C n H 2n + 1)2 R 4选自氢,C 1-6烷基和如对R 2所述的基团; R 5选自氢和任选的羟基,烷氧基,芳氧基或芳烷氧基取代的C 1-13烷基, 芳基和C7-13烷基R6独立地选自氢和C1-13烷基,R7选自氢,C1-13烷基,芳基和C7-13芳烷基或任何这样的化合物的药学上可接受的盐,C n H 2n + 1是C 1-6烷基, 条件是该化合物不是1-乙基-2-(1'-羟乙基)-3-羟基吡啶-4中的一种 - 酮和1-甲基-2-羟甲基-3-羟基吡啶-4-酮。