Synthesis and cytotoxic activity of certain new arylazothiazole containing compounds
作者:Salwa El-Meligie、Raafat A. El-Awady
DOI:10.1002/jhet.5570390604
日期:2002.11
the chalcone analogues 4a-c. The pyridone derivatives 5a,b were synthesized by reacting the ketone 2d with different aromatic aldehydes, ethyl cyanoacetate and ammonium acetate. On the other hand, 5b was also prepared by cyclizing 4c with ethyl cyanoacetate and ammonium acetate. Furthermore, 6-chloroimidazo[2,l-b]-thiazole 7 was obtained from the acid derivative 6b by treatment with POC13. While, the
通过将芳基重氮氯化物与2-氨基-4-(2-氯苯基)噻唑(1)偶联制备2-氨基-5-芳基偶氮-4-(2-氯苯基)噻唑(2a-e)。通过将芳基偶氮噻唑2a-c与适当的异硫氰酸酯缩合获得硫脲3a-e。2d与芳族醛的反应得到查耳酮类似物4a-c。通过使酮2d与不同的芳族醛,氰基乙酸乙酯和乙酸铵反应来合成吡啶酮衍生物5a,b。另一方面,也可以通过环化4c来制备5b用氰基乙酸乙酯和乙酸铵。此外,通过用POCl 3处理,从酸衍生物6b获得6-氯咪唑并[2,1- b ]-噻唑7。而咪唑并[2,1 - b ]-噻唑酮9a-d是通过将氯乙酰基衍生物8a-d与DMAP /嘧啶环化而产生的。测试了所制备化合物的代表性实例对两种人类肿瘤细胞系的体外抗肿瘤活性。一些化合物显示出针对脑肿瘤细胞系的活性。