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    • 6. 发明申请
    • TARGETED DRUG DELIVERY USING SULFONAMIDE DERIVATIVES
    • 使用磺酰胺衍生物的目标药物递送
    • WO1998000173A2
    • 1998-01-08
    • PCT/US1997010817
    • 1997-07-01
    • PHARMACIA & UPJOHN COMPANYZHAO, ZhiyangTOMASSELLI, Alfredo, G.KOEPLINGER, Kenneth, A.PETERSON, TillieSUARATO, Antonino
    • PHARMACIA & UPJOHN COMPANY
    • A61K47/48
    • A61K47/54
    • The present invention relates to Glutathione S-transferase (GST)/Reduced Glutathione (GSH) as a means for the in-vivo release of a drug that has been conjugated to specific electrophilic moieties via a sulfonamide bond. The drug may be an anticancer agent (or one with other therapeutic properties) carrying a free -NH- which has been derivatized by the attachment of an electrophile containing a moiety, such as p-CN- or p-NO2-pyridinylsulfonyl groups, or p-NO2- or 2,4 dinitrophenylsulfonyl groups, or suitable derivatives thereof, to make a prodrug. Optionally, the sulfonamide moiety may have attached to it a targeting molecule. The present invention also provides Glutathione S-transferase (GST)/Reduced Glutathione (GSH) as a means for the release of a protected amino derivative that has been conjugated to specific electrophilic moieties via a sulfonamide bond. The precursor is a synthetic intermediate carrying a free -NH- which has been derivatized by the attachment of an electrophile via a sulfonamide bond.
    • 本发明涉及谷胱甘肽S-转移酶(GST)/还原型谷胱甘肽(GSH),其作为通过磺酰胺键与特定亲电部分缀合的药物的体内释放的手段。 所述药物可以是携带游离-NH-的抗癌剂(或具有其它治疗性质的物质),其通过附着含有部分的亲电子试剂例如p-CN-或p- NO2-吡啶基磺酰基衍生化,或 p-NO 2 - 或2,4-二硝基苯磺酰基或其合适的衍生物,以制备前体药物。 任选地,磺酰胺部分可以与其连接有靶向分子。 本发明还提供谷胱甘肽S-转移酶(GST)/还原型谷胱甘肽(GSH),作为释放通过磺酰胺键与特定亲电部分缀合的被保护的氨基衍生物的手段。 前体是携带游离-NH-的合成中间体,其已经通过连接亲电子试剂通过磺酰胺键衍生化。