Synthesis and biological activities of novel quinazolinone derivatives containing a 1,2,4-triazolylthioether moiety
作者:Bo-Ren Yan、Xin-Yang Lv、Huan Du、Man-Ni Gao、Jian Huang、Xiao-Ping Bao
DOI:10.1515/chempap-2016-0034
日期:2016.1.1
A series of novel quinazolinone derivatives containing a 1,2,4-triazolylthioether moiety were synthesised and their antimicrobial activities were evaluated. All the target compounds were characterised by 1H NMR, 13C NMR, ESI-MS, IR and elemental analyses. The single crystal structure of 3-((5-((2-fluorobenzyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)methyl)quinazolin-4(3H)-one (VIIi) was also determined
合成了一系列包含1,2,4-三唑基硫醚部分的新型喹唑啉酮衍生物,并评估了其抗菌活性。所有目标化合物均通过1 H NMR,13 C NMR,ESI-MS,IR和元素分析进行表征。3-(((5-((2-氟苄基)硫基)-4-苯基-4 H -1,2,4-三唑-3-基)甲基)喹唑啉-4(3 H)-单晶结构(VIIi)也被确定。初步的生物测定表明,某些目标化合物具有良好的抗菌活性。例如,3-((4-苯基-5-((4-(三氟甲基)苄基)硫基)-4 H -1,2,4-三唑-3-基)甲基)喹唑啉-4(3 H)-(VIIs)对米生黄单胞菌pv表现出最好的抑制作用。稻和黄单胞菌(Xanthomonas axonopodis)。柠檬酸的半有效浓度(EC 50)值分别为47.6μgmL -1和22.1μgmL -1,优于商业杀菌剂比美噻唑。同时,3-((5-((4-氯苄基)硫基)-4-苯基-4 H -1,2,4-三唑-3-基)甲基)喹唑啉-4(3