The present invention provides AGT inactivating compounds such as 7- or 9-substituted 8- aza- O6-benzylguanines of formula (III) or (IV), and related substituted O6-benzyl guanines, as well as pharmaceutical compositions comprising such compounds along with a pharmaceutically acceptable carrier. The present invention further provides a method of enhancing the chemotherapeutic treatment of tumour cells in a mammal with an antineoplastic alkylating agent which causes cytotoxic lesions at the O6- position of guanine, by administering to a mammal an effective amount of one of the aforesaid compounds, 2,4-diamino-6-benzyloxy-s-triazine, or 8-aza-O6-benzylguanine, and administering to the mammal an effective amount of an antineoplastic alkylating agent which causes cytotoxic lesions at the O6- position of guanine.
本发明提供了AGT失活化合物,如式(III)或(IV)的7-或9-取代的8-氮杂O6-苄基
鸟嘌呤和相关的取代的O6-苄基
鸟嘌呤,以及包含此类化合物和药学上可接受的载体的药物组合物。本发明进一步提供了一种用抗肿瘤烷化剂加强对哺乳动物体内肿瘤细胞的化疗治疗的方法,该抗肿瘤烷化剂可在
鸟嘌呤的 O6-位上引起细胞毒性病变、向哺乳动物施用有效量的上述化合物之一、2,4-二
氨基-6-苄氧基-s-三嗪或 8-氮杂-O6-苄基
鸟嘌呤,并向哺乳动物施用有效量的抗肿瘤烷化剂,这种抗肿瘤烷化剂可在
鸟嘌呤的 O6-位上引起细胞毒性病变。