申请人:——
公开号:US20030109555A1
公开(公告)日:2003-06-12
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-NO 2-pyridinylsulfonyl groups, or p-NO 2- 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 Gluthathione (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)/还原谷胱甘肽(GSH)作为体内释放已通过磺酰胺键与特定亲电性基团结合的药物的手段。该药物可能是一种抗癌剂(或具有其他治疗性能)携带有一个自由的-NH-,通过连接含有一个基团的亲电子试剂,如p-CN-或p-NO2-吡啶基磺酰基团,或p-NO2-或2,4-二硝基苯基磺酰基团,或其适当的衍生物,制备成前药。可选地,磺酰胺基团上可能连接有一个靶向分子。本发明还提供谷胱甘肽S-转移酶(GST)/还原谷胱甘肽(GSH)作为释放已通过磺酰胺键与特定亲电性基团结合的保护氨基衍生物的手段。前体是一种合成中间体,携带有一个自由的-NH-,通过连接一个亲电子试剂通过磺酰胺键进行衍生化。