To search for efficient agricultural antifungal lead compounds, 39 Chimonanthus praecox derivatives were designed, synthesized, and evaluated for their antifungal activities. The structures of target compounds were fully characterized by 1H NMR, 13C NMR, and MS spectra. The preliminary bioassays revealed that some compounds exhibited excellent antifungal activities in vitro. For example, the minimum inhibitory concentration (MIC) of compound b15 against Phytophthora infestans was 1.95 µg mL−1, and the minimum inhibitory concentration (MIC) of compound b17 against Sclerotinia sclerotiorum was 1.95 µg mL−1. Therefore, compounds b15 and b17 were identified as the most promising candidates for further study.
为了寻找高效的农业抗真菌铅化合物,设计、合成和评估了39个延龄花衍生物的抗真菌活性。目标化合物的结构通过1H NMR、13C NMR和MS光谱完全表征。初步的生物测定表明,一些化合物在体外表现出优异的抗真菌活性。例如,化合物b15对马铃薯晚疫病菌的最小抑菌浓度(MIC)为1.95 µg mL−1,化合物b17对菜菌菇菌的最小抑菌浓度(MIC)为1.95 µg mL−1。因此,化合物b15和b17被确定为进一步研究的最有前途的候选化合物。