Synthesis, in vitro antimicrobial, antioxidant, and antidiabetic activities of thiazolidine–quinoxaline derivatives with amino acid side chains
作者:Suhas A. Shintre、Deresh Ramjugernath、Md Shahidul Islam、Ramgopal Mopuri、Chunderika Mocktar、Neil A. Koorbanally
DOI:10.1007/s00044-017-1922-x
日期:2017.9
the rapid assembly of a hybrid framework based on amino acid, thiazolidine and quinoxaline scaffolds has been demonstrated by microwave irradiation. The quinoxalines with amino acid side chains 5a–5c were prepared in three steps from 2,4-dinitrofluorobenzene and the amino acids, valine, methionine, and tyrosine and subsequently reacted with four different aldehydes and thioglycolic acid to produce
摘要通过微波辐射已经证明了用于快速组装基于氨基酸,噻唑烷和喹喔啉骨架的杂合框架的新方案。氨基酸侧链为5a - 5c的喹喔啉可以从2,4-二硝基氟苯和氨基酸,缬氨酸,蛋氨酸和酪氨酸分三步制备,然后与四种不同的醛和巯基乙酸反应生成噻唑烷-喹喔啉杂化物酸侧链6a - 6l。评价所有合成的化合物的体外抗微生物,抗氧化剂和抗糖尿病活性。化合物6f,6j和6k具有对革兰氏+ ve和革兰氏–ve细菌的广谱抗菌活性,而6h,6k和6l具有与抗坏血酸相同数量级的最佳抗氧化活性。化合物5c,6d,6g和6k中的四种显示出与阿卡波糖相似的抗α-葡萄糖苷酶和α-淀粉酶的活性。这些具有抗菌活性的化合物具有4-氟苯基和4-甲氧基苯基以及甲硫氨酸和酪氨酸侧链,而具有抗氧化剂,α-葡萄糖苷酶和α的化合物-淀粉酶活性在噻唑烷部分上具有4-硝基苯基和4-甲氧基苯基,主要具有甲硫氨酸和酪氨酸侧链。的α葡萄糖苷酶和α淀粉酶抑制性