Non-classical antifolates. Part 2: Synthesis, biological evaluation, and molecular modeling study of some new 2,6-substituted-quinazolin-4-ones
作者:Fatmah A.M. Al-Omary、Laila A. Abou-zeid、Mahmoud N. Nagi、El-Sayed E. Habib、Alaa A.-M. Abdel-Aziz、Adel S. El-Azab、Sami G. Abdel-Hamide、Mohamed A. Al-Omar、Abdulrahman M. Al-Obaid、Hussein I. El-Subbagh
DOI:10.1016/j.bmc.2010.03.019
日期:2010.4
Compounds 34 and 36 showed antitumor activity at GI50 (MG-MID) concentrations of 11.2, and 24.2 μM, respectively. Molecular modeling study including flexible alignment; electrostatic, hydrophobic mappings; and pharmacophore prediction were performed. A main featured pharmacophore model was developed which justifies the importance of the main pharmacophoric groups as well as of their relative distances.
设计,合成和评估了一系列新的2,6-取代的喹唑啉-4-酮,并对其体外DHFR抑制,抗菌和抗肿瘤活性进行了评估。化合物22,33-37,39-43,和45被证明是活性DHFR抑制剂与IC 50范围0.4-1.0微米。化合物18显示出与已知抗生素庆大霉素相当的广谱抗菌活性。化合物34和36在GI 50时显示抗肿瘤活性(MG-MID)浓度分别为11.2和24.2μM。分子建模研究,包括灵活的比对;静电,疏水图谱;和药效团预测进行。开发了一个主要的药效基团模型,该模型证明了主要药效基团及其相对距离的重要性。关于喹唑啉核的π系统的取代模式和空间考虑被证明对生物活性至关重要。