The present invention provides methods of producing libraries of compounds with enhanced desirable properties and diminished side effects as well as the compounds produced by the methods. In preferred embodiments, methods of the present invention use a universal chemical glycosylation method that employs reducing sugars and requires no protection or activation. In a preferred embodiment, the invention provides a library of neoglycoside digitoxin analogs that includes compounds with significantly enhanced cytotoxic potency toward human cancer cells and tumor-specificity, but are less potent Na+/K+-ATPase inhibitors in a human cell line than digitoxin.
本发明提供了一种生产具有增强理想性能和减少副作用的化合物库的方法,以及通过这些方法生产的化合物。在优选实施例中,本发明的方法使用一种通用的
化学糖基化方法,该方法采用还原糖,无需保护或激活。在优选实施例中,本发明提供了一种新糖苷
地高辛类似物库,其中包括对人类癌细胞具有显著增强的细胞毒性活性和肿瘤特异性的化合物,但在人类
细胞系中对Na+/K+-
ATPase的抑制作用较
地高辛要弱。