Synthesis and biological screening of thiosemicarbazones of substituted 3-acetylcoumarins having d-glucose moiety
作者:Vu Ngoc Toan、Nguyen Dinh Thanh、Nguyen Minh Tri、Nguyen Thi Thu Huong
DOI:10.1016/j.bmcl.2020.127664
日期:2020.12
Thiosemicarbazones 5a-j were synthesized with yields of 45–68% by condensation of 3-acetylcoumarins 3a-j and tetra-O-acetyl-β-d-thiosemicarbazide 4. All obtained thiosemicarbazones were screened for anti-microorganic activities against bacteria (B. subtilis, S. aureus, S. epidermidis, E. coli, P. aeruginosa, K. pneumoniae, S. typhimurium) and fungi (A. niger, C. albicans, S. cerevisiae, and A. flavus)
通过3-乙酰香豆素3a-j和四-O-乙酰基-β - d-硫代氨基脲4的缩合反应合成了硫代氨基甲唑酮5a-j,产率为45-68%。筛选所有获得的硫半咔唑酮对细菌(枯草芽孢杆菌,金黄色葡萄球菌,表皮葡萄球菌,大肠杆菌,铜绿假单胞菌,肺炎克雷伯菌,鼠伤寒沙门氏菌)和真菌(黑曲霉,大肠杆菌)的抗微生物活性。白色念珠菌,酿酒酵母和黄曲霉)。一些化合物具有与0.78-3.125μM的MIC的显著抑制活性比较图5a,包括5E,ħ,我对金黄色葡萄球菌,和5c中,˚F,我为表皮葡萄球菌(革兰氏- (+)菌),图5c,f,g代表大肠杆菌,5f代表肺炎克雷伯菌,5b,c,g代表铜绿假单胞菌和5i代表鼠伤寒沙门氏菌(革兰氏-细菌),5d,h,i代表黑曲霉,5i代表黄曲霉,5b,d,e,h代表白色念珠菌,5i代表酿酒酵母。化合物对MIC = 0.78μM的被测微生物表现出优异的活性,包括5h,i(针对金黄色葡萄球菌