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- -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。