The present invention provides novel pyrrolo[2,1-c][1, 4]benzodiazepine- glycoside prodrug of general formula (1a-b), useful as selective anticancer agents. The present invention also provides a process for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine-glycoside prodrugs of general formula (1a-b). This invention also provides activation of these produgs by E.coli β galactosidase and envisaged that these molecules are toxic to human cancer cell lines in the presence of the enzyme E.coli β -galactosidase. The prodrugs (1a and 1b) were also found to be toxic to human cancer HepG2 cells even in the absence of the E.coli β-galactosidase. The toxic effect of the molecules when activated was similar to that of the parent molecules (6a and 6b), respectively.
本发明提供了一种新颖的通用公式(1a-b)的
吡咯并[2,1-c][1,4]
苯二
氮䓬-糖苷前药,可用作选择性抗癌剂。本发明还提供了一种制备新型
吡咯并[2,1-c][1,4]
苯二
氮䓬-糖苷前药的方法,其通用公式为(1a-b)。本发明还提供了通过大肠杆菌
β-半乳糖苷酶激活这些前药,并预期这些分子在大肠杆菌
β-半乳糖苷酶存在的情况下对人类癌
细胞系具有毒性。这些前药(1a和1b)即使在没有大肠杆菌
β-半乳糖苷酶的情况下,也被发现对人类癌细胞HepG2具有毒性。激活后分子的毒性效应与相应的母体分子(6a和6b)相似。