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    • 3. 发明公开
    • REMEDIES FOR DIABETES
    • 抗炎药物MEDIKAMENTE
    • EP1092435A1
    • 2001-04-18
    • EP99926903.8
    • 1999-07-02
    • KYOWA HAKKO KOGYO CO., LTD.
    • SHIMADA, JunichiOHTA, YoshihisaTAKASAKI, KotaroSUDA, MihoKUSAKA, HideakiYANO, HiroshiNAKANISHI, SatoshiMATSUDA, Yuzuru
    • A61K31/505
    • C07D487/14A61K31/505A61K31/519Y10S514/866
    • A medicament for the therapeutic treatment of diabetes which comprises as an active ingredient a compound represented by the general formula (I):
      wherein R 1 represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aromatic heterocyclic group, R 2 represents a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aromatic heterocyclic group, R 3 represents a hydrogen atom, a lower alkyl group or a substituted or unsubstituted aralkyl group, X 1 and X 2 independently represent a hydrogen atom, a lower alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group, and the symbol "n" represents an integer of from 0 to 3, or a physiologically acceptable salt thereof.
    • 一种用于治疗糖尿病的药物,其包含作为活性成分的由通式(I)表示的化合物:其中R 1表示氢原子,低级烷基,取代或未取代的芳基, 或取代或未取代的芳族杂环基,R 2表示氢原子,低级烷基,取代或未取代的芳烷基,取代或未取代的芳基或取代或未取代的芳族杂环基,R 3, 表示氢原子,低级烷基或取代或未取代的芳烷基,X 1和X 2独立地表示氢原子,低级烷基,取代或未取代的芳烷基或取代或未取代的芳基 组,符号“n”表示0〜3的整数,或其生理上可接受的盐。
    • 5. 发明公开
    • PROCESS FOR PRODUCING XANTHINE DERIVATIVE
    • 生产黄嘌呤衍生物的方法
    • EP0711772A1
    • 1996-05-15
    • EP95918190.0
    • 1995-05-16
    • KYOWA HAKKO KOGYO CO., LTD.
    • SHIMADA, JunichiEGUCHI, TamotsuMOCHIDA, KenichiHORIGUCHI, AkiraYASUZAWA, TohruKUSAKA, HideakiNONAKA, HiromiSUZUKI, Fumio
    • C07D473/04C12P17/18
    • C07D473/04C07D473/06C12P17/18
    • The present invention relates to a process for producing a xanthine derivative represented by formula (II), comprising converting a xanthine derivative represented by formula (I) {hereinafter, referred to as Compound (I)}:

      (wherein R¹ and R² independently represent hydrogen, or hydroxy-substituted, oxo-substituted, or unsubstituted lower alkyl) into a xanthine derivative represented by formula (II) {hereinafter, referred to as Compound (II)}:

      (wherein R³ and R⁴ independently represent hydrogen, or hydroxy-substituted, oxo-substituted, or unsubstituted lower alkyl; R⁵ and R⁶ independently represent hydrogen, hydroxy, or oxo; with the proviso that R⁵ and R⁶ are both hydrogen, at least one of R³ and R⁴ is hydroxy-substituted or oxo-substituted lower alkyl; and X and Y both represent hydrogen or are combined with each other to form a single bond) in the presence of an enzyme source for catalyzing hydroxylation or carbonylation of Compound (I) into Compound (II), and collecting the produced Compound (II).
    • (I)表示的黄嘌呤衍生物{以下称为化合物(I)}:(式中,R 1和R 2分别独立地表示氢原子 (II)所示的黄嘌呤衍生物{以下称为化合物(II)} :(其中R 3和R 4分别独立地表示氢或羟基取代的,氧代 - 取代的或未取代的低级烷基) ,氧代 - 取代的或未取代的低级烷基; R 5和R 6独立地代表氢,羟基或氧代;条件是R 5和R 7都是氢,R 3和R 4中至少一个是羟基取代的或氧代 - 取代的低级烷基 ;并且X和Y均代表氢或彼此结合形成单键)在催化化合物(I)羟化或羰基化成化合物(II)的酶源存在下,并收集 生成的化合物(II)。