申请人:BioNumerik Pharmaceuticals, Inc.
公开号:US07687496B2
公开(公告)日:2010-03-30
The novel C7-modified camptothecin analogs, and pharmaceutically-acceptable salts thereof, of the present invention: (i) possess potent antitumor activity (i.e., in nanomolar or subnanomolar concentrations) for inhibiting the growth of human and animal tumor cells in vitro; (ii) are potent inhibition of Topoisomerase I; (iii) lack of susceptibility to MDR/MRP drug resistance; (iv) require no metabolic drug activation: (v) lack glucuronidation of the A-ring or B-ring; (vi) reduce drug-binding affinity to plasma proteins; (vii) maintain lactone stability; (viii) maintain drug potency; and (ix) possess a low molecular weight (e.g., MW<600).
本发明的C7修饰的喜树碱类似物及其药学上可接受的盐:(i) 在体外抑制人类和动物肿瘤细胞生长具有强效的抗肿瘤活性(即在纳摩尔或亚纳摩尔浓度下);(ii) 对拓扑异构酶I具有强效的抑制作用;(iii) 不易受到MDR/MRP药物耐药性的影响;(iv) 不需要代谢药物激活;(v) A环或B环不发生葡萄糖醛酸化;(vi) 减少药物与血浆蛋白的结合亲和力;(vii) 保持内酯稳定性;(viii) 保持药物效力;(ix) 分子量较低(例如,MW<600)。