Synthesis of chloro, fluoro, and nitro derivatives of 7‐amino‐5‐aryl‐6‐cyano‐5<i>H</i>‐pyrano pyrimidin‐2,4‐diones using organic catalysts and their antimicrobial and anticancer activities
作者:Oluwole S. Aremu、Parvesh Singh、Moganavelli Singh、Chunderika Mocktar、Neil A. Koorbanally
DOI:10.1002/jhet.3695
日期:2019.11
Chloro, fluoro, and nitro derivatives of 7‐amino‐5‐aryl‐6‐cyano‐5H‐pyrano pyrimidin‐2,4‐diones were produced by reacting malononitrile, barbituric acid, and aromatic aldehydes together with a DABCO catalyst in an aqueous one‐pot reaction. This is the first report of these compounds being synthesized with DABCO as a catalyst, which produced the compounds in yields in excess of 90%. The 2,4‐difluoro
通过使丙二腈,巴比妥酸和芳族醛与DABCO催化剂在甲醇中反应,制得7-氨基-5-芳基-6-氰基-5 H-吡喃嘧啶-2,4-二酮的氯,氟和硝基衍生物。水一锅反应。这是用DABCO作为催化剂合成这些化合物的第一个报道,该化合物生产的化合物收率超过90%。2,4-二氟衍生物(11)是新颖的。借助1 H,13 C和2D NMR光谱对合成的化合物的结构进行了阐明。化合物2(2-Cl衍生物)对金黄色葡萄球菌和MRSA的MBC值均<200μM ,而2-硝基衍生物5对革兰氏大肠杆菌的MBC为191μM 。还测试了合成的化合物对HeLa细胞系的抗癌活性,该化合物中的所有化合物均比常用的抗癌药物5-氟尿嘧啶表现出更好的活性(IC 50值在129μM和340μM之间)。