申请人:Huang Ru Chih C.
公开号:US20140186266A1
公开(公告)日:2014-07-03
Novel compounds which are derivatives of tetra-O-methyl nordihydroguaiaretic acid (NDGA), as well as pharmaceutically acceptable salts, solvates, and stereoisomers thereof are provided. These NDGA derivatives have a nitroimidazole moiety and these derivatives show preferential toxicity to hypoxic cells as hypoxic cytotoxins. Their cytotoxicity toward hypoxic cells is a result of abstraction of hydrogen from target molecules by free radicals formed in the reduction of the nitro group. This makes the disclosed compounds an effective anti cancer drug because hypoxic cells are generally considered to be more resistant to anti cancer drugs than normal cells. Pharmaceutical compositions comprising such compounds, as well as methods of use, and treatment for cancers, including hepatocellular carcinoma, breast cancer and prostate cancer, are also provided.
本发明提供了一种四-O-甲基去氢雪松酸(NDGA)衍生物的新化合物,以及其药学上可接受的盐、溶剂和立体异构体。这些NDGA衍生物具有亚硝基咪唑基团,这些衍生物显示出对缺氧细胞的优先毒性,作为缺氧细胞毒素。它们对缺氧细胞的细胞毒性是由于在还原亚硝基团的过程中形成的自由基从目标分子中提取氢原子而产生的。这使得所披露的化合物成为一种有效的抗癌药物,因为缺氧细胞通常被认为比正常细胞更耐受抗癌药物。还提供了包括这些化合物的制药组合物,以及使用方法和治疗癌症(包括肝细胞癌、乳腺癌和前列腺癌)的方法。