Nonclassical antifolates, part 3: Synthesis, biological evaluation and molecular modeling study of some new 2-heteroarylthio-quinazolin-4-ones
作者:Fatmah A.M. Al-Omary、Ghada S. Hassan、Shahenda M. El-Messery、Mahmoud N. Nagi、El-Sayed E. Habib、Hussein I. El-Subbagh
DOI:10.1016/j.ejmech.2012.12.061
日期:2013.5
antitumor activity toward several tumor cell lines with GI values range of 25.8–41.2%. Molecular modeling studies concluded that recognition with key amino acid Arg38 and Lys31 are essential for binding and biological activities. Flexible alignment; electrostatic and hydrophobic mappings revealed that the obtained model could be useful for the development of new DHFR inhibitors.
设计,合成并评估了一系列新的2-杂芳硫基-6-取代的喹唑啉-4-one类似物的体外DHFR抑制,抗菌和抗肿瘤活性。化合物21,25,和39被证明是活性DHFR抑制剂与IC 50范围0.3-0.8微米。化合物25,28,33,35和36显示出广谱的抗微生物活性相媲美的已知抗生素庆大霉素。化合物29对GI值范围为25.8–41.2%的几种肿瘤细胞系显示出广谱抗肿瘤活性。分子模型研究得出的结论是,关键氨基酸Arg38和Lys31的识别对于结合和生物活性至关重要。灵活的对齐方式;静电和疏水图谱表明,所获得的模型可用于开发新的DHFR抑制剂。