Synthesis of 2,3-Bis(halomethyl)quinoxaline Derivatives and Evaluation of Their Antibacterial and Antifungal Activities
作者:Hisato Ishikawa、Takayuki Sugiyama、Akihiro Yokoyama
DOI:10.1248/cpb.c12-01061
日期:——
Quinoxaline derivatives having bis(fluoromethyl), bis(chloromethyl), or bis(iodomethyl) groups at the 2- and 3-positions, and various electron-donating/withdrawing substituents at the 6- and/or 7-positions, were synthesized. Their antibacterial and antifungal activities were evaluated by means of minimum inhibitory concentration assays. The relationships between the substituents and the antimicrobial activities of the quinoxaline derivatives indicate that the electrophilicity of the halomethyl units plays an important role in generating the antimicrobial activity.
合成了在2位和3位具有双(氟甲基)、双(氯甲基)或双(碘甲基)基团,在6位和/或7位具有各种电子给体/电子受体取代基的喹喔啉衍生物。通过最小抑菌浓度测定法评估了它们的抗菌和抗真菌活性。喹喔啉衍生物的取代基与抗菌活性之间的关系表明,卤甲基单元的电负性在产生抗菌活性方面起着重要作用。