Affiliation: Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, China, Fuzhou, 350002.
21 new structures of isoxazole-moiety-containing thieno[2,3-d]pyrimidine derivatives(3a~3u) were synthesized for the first time and characterized using IR, 1H NMR, 13C NMR, ESI-MS and elemental analysis techniques. And then their in vitro anticancer activity against lung cancer A549, colorectal HCT116 and breast cancer MCF-7 cell lines was preliminarily evaluated using the MTT method. Among them, most compounds exhibited good to excellent anticancer activity. In particular, 3g, 3j and 3n exhibited a broad spectrum and more potent anticancer activity against A549, HCT116 and MCF-7 cell lines, which can be regarded as the promising anticancer drug-candidates.