Bioactivity-Guided Synthesis Accelerates the Discovery of 3-(Iso)quinolinyl-4-chromenones as Potent Fungicide Candidates
作者:Wei Wang、Shan Zhang、Jianhua Wang、Furan Wu、Tao Wang、Gong Xu
DOI:10.1021/acs.jafc.0c06700
日期:2021.1.13
Fungal infections could cause tremendous decreases in crop yield and quality. Natural products, including flavonoids and (iso)quinolines, have always been an important source for lead discovery in medicinal and agricultural chemistry. To promote the discovery and development of new fungicides, a series of 3-(iso)quinolinyl-4-chromenone derivatives was designed and synthesized by the active substructure
真菌感染可能导致农作物产量和质量大幅下降。天然产物,包括类黄酮和(异)喹啉,一直是药物和农业化学中铅发现的重要来源。为促进新杀菌剂的发现和开发,根据活性亚结构剪接原理设计并合成了一系列3-(异)喹啉基-4-色酮衍生物,并对其抗真菌活性进行了评估。前导优化以生物活性为指导。生物测定数据表明,3-喹啉基-4-苯并吡喃13显示显著体外针对活动核盘菌,V.马里,和灰葡萄孢有EC 50值分别为3.65、2.61和2.32 mg / L。3-isoquinolinyl-4-chromenone 25表现出优异的抗链球菌的体外活性,EC 50值为1.94 mg / L,接近商业杀菌剂百菌清(EC 50 = 1.57 mg / L),但低于Boscalid(EC 50 = 0.67 mg / L)。对于V. mali和B. cinerea,3-异喹啉基-4-色酮25(EC 50 = 1.56,1.54 mg