Synthesis and molecular modeling of antimicrobial active fluoroquinolone–pyrazine conjugates with amino acid linkers
作者:Siva S. Panda、Oleksandr S. Detistov、Adel S. Girgis、Prabhu P. Mohapatra、Ahmed Samir、Alan R. Katritzky
DOI:10.1016/j.bmcl.2016.03.062
日期:2016.5
Novel fluoroquinolone–pyrazine conjugates 7a–h with amino acid linkers were synthesized in good yields utilizing benzotriazole chemistry. Antimicrobial bioassay showed that the synthesized bis-conjugates have antimicrobial properties comparable to the parent drugs. Compound 7h showed superior antibacterial activity against Staphylococcus aureus and Streptococcus pyogenes (MIC = 74.6 μM and 149.3 μM
利用苯并三唑化学法以高收率合成了具有氨基酸接头的新型氟喹诺酮-吡嗪共轭物7a – h。抗菌生物测定表明,合成的双结合物具有与母体药物相当的抗菌性能。化合物7h对金黄色葡萄球菌和化脓性链球菌显示出优异的抗菌活性(分别为MIC = 74.6μM和149.3μM)。这与3D药效团和2D-QSAR研究获得的估计值非常吻合(分别为MIC = 67μM和92.9μM)。