New efficient design and synthesis of novel antioxidant and antifungal 7-imino[1,3]selenazolo[4,5-d]pyrimidine-5(4H)-thiones utilizing a base-promoted cascade addition/cyclization sequence
作者:Seddigheh Sheikhi-Mohammareh、Ali Shiri、Hamid Beyzaei、Elahe Yarmohammadi
DOI:10.1007/s00706-020-02617-2
日期:2020.6
AbstractA straightforward strategy for the efficient synthesis of multi-functionalized 7-imino[1,3]selenazolo[4,5-d]pyrimidine-5(4H)-thiones bearing an incorporated N-phenylmethanethioamide fragment from the heteroannulation of several 2,4,5-trisubstituted 1,3-selenazoles with readily accessible phenyl isothiocyanates was established in boiling pyridine. To enrich the biological profile of the newly
摘要一种有效的直接策略,可以有效地从多个2的异环合反应合成多官能团7-亚氨基[1,3]硒代唑[4,5 - d ]嘧啶-5(4 H)-硫酮,并带有结合的N-苯基甲烷硫酰胺片段。在沸腾的吡啶中建立了具有易于获得的异硫氰酸苯酯的4,5-三取代的1,3-硒唑。为了丰富新合成的稠合杂环支架的生物学特性,将一些著名的药效团,例如吡咯烷,哌啶,吗啉,氟和溴插入框架中。评估了含硒杂环对DPPH和白色念珠菌的抑制活性。抗氧化活性如IC 50观察到的值在0.010-0.063 mM的范围内。结果表明,6-苯基-取代的selenazolopyrimidines轴承C 2 -吡咯烷和C 2与IC -哌啶既50 0.010毫值分别为最高级以及其他。远远优于抗坏血酸(IC 50 = 0.022 mM),带有2-吗啉残留物(IC 50 = 0.014 mM)和2-哌啶(IC 50 = 0.019 mM)的4-氟苯