Novel Fluorinated 7-Hydroxycoumarin Derivatives Containing an Oxime Ether Moiety: Design, Synthesis, Crystal Structure and Biological Evaluation
作者:Qing-Qing Wang、Shu-Guang Zhang、Jian Jiao、Peng Dai、Wei-Hua Zhang
DOI:10.3390/molecules26020372
日期:——
A series of fluorinated 7-hydroxycoumarin derivatives containing an oxime ether moiety have been designed, synthesized and evaluated for their antifungal activity. All the target compounds were determined by 1H-NMR, 13C-NMR, FTIR and HR-MS spectra. The single-crystal structures of compounds 4e, 4h, 5h and 6c were further confirmed using X-ray diffraction. The antifungal activities against Botrytis
一系列含有肟醚部分的氟化 7-羟基香豆素衍生物已被设计、合成并评估了它们的抗真菌活性。目标化合物均经1H-NMR、13C-NMR、FTIR和HR-MS谱测定。使用X射线衍射进一步证实了化合物4e、4h、5h和6c的单晶结构。对灰葡萄孢菌(B. cinerea)、茄病链格孢(A. solani)、玉米赤霉病(G. zeae)、玉米根霉(R. solani)、轮炭孢霉(C. orbiculare)和交链孢霉(A. alternata)的抗真菌活性) 进行了体外评估。初步生物测定表明,一些设计的化合物对上述测试的真菌显示出有希望的抗真菌活性。引人注目的是,目标化合物5f和6h在100 μg/mL时对B. cinerea表现出优异的抗真菌活性,相应的抑制率分别达到90.1和85.0%,优于阳性对照蛇床子素(83.6%)和嘧菌酯(46.5%)。化合物5f被鉴定为有前景的抗灰霉病的候选杀菌剂,EC50值为5