Synthesis, characterization and biological activity of new 3(4H)-quinazolinone derivatives
作者:A. I. El-Shenawy
DOI:10.1134/s1070363217090237
日期:2017.9
synthesis of many heterocyclic systems. Ethyl 4-[4-oxo-2-phenylquinazolin-3(4H)-yl]benzoate 2 upon reaction with hydrazine hydrate gave 4-[4-oxo-2-phenylquinazolin-3(4H)-yl]benzoate benzoylhydrazide 3. Compound 3 on treatment with 3-nitrobenzaldehyde, acetyl acetone, ethyl acetoacetate, and ammonium thiocyanate yielded compounds 4–8, respectively. Isothiocyanate 8 was used for the synthesis of other
喹唑啉基苯甲酸1被用作许多杂环系统合成的前体。与水合肼反应后的4- [4-氧代-2-苯基喹唑啉-3(4 H)-基]苯甲酸乙酯2得到4- [4-氧代-2-苯基喹唑啉-3(4 H)-基]苯甲酸乙酯苯甲酰肼3。化合物3治疗与3-硝基苯甲醛,乙酰丙酮,乙酰乙酸乙酯,和硫氰酸铵,得到化合物4 - 8,分别。异硫氰酸盐8用于合成其他喹唑啉衍生物9 – 16通过与各种试剂的反应。所有新合成的喹唑啉酮衍生物均已通过1 H NMR,IR和质谱表征。对大多数合成产品的抗菌和抗真菌活性进行了评估,其中一些具有高活性。