Design, synthesis and antifungal activity evaluation of isocryptolepine derivatives
作者:Jun-cai Li、Ren-xuan Wang、Yu Sun、Jia-kai Zhu、Guan-fang Hu、Yu-ling Wang、Rui Zhou、Zhong-min Zhao、Ying-qian Liu、Jing-wen Peng、Yin-fang Yan、Xiao-fei Shang
DOI:10.1016/j.bioorg.2019.103266
日期:2019.11
2-c] quinazoline. A series of “Aza”-type derivatives were designed, synthesized and evaluated for their antifungal activity against six plant fungi in vitro. Among all derivatives, compounds A-0, B-1 and B-2 showed significant antifungal activity against B. cinerea with the EC50 values of 2.72 μg/mL, 5.90 μg/mL and 4.00 μg/mL, respectively. Compound A-2 had the highest activity against M. oryzae with
在本文中,将氮原子插入异隐油环的蒽环系统中,以获得“ Aza”型结构的苯并[4,5]咪唑并[1,2-c]喹唑啉。设计,合成了一系列“ Aza”型衍生物,并对其在体外对六种植物真菌的抗真菌活性进行了评估。在所有衍生物中,化合物A-0,B-1和B-2对灰葡萄孢具有显着的抗真菌活性,EC 50值分别为2.72μg/ mL,5.90μg/ mL和4.00μg/ mL。化合物A-2对米曲霉的活性最高,其EC 50值为8.81μg/ mL,A-1表现出对最防治效果纹枯病菌(EC 50,6.27微克/毫升)。此外,选择了化合物A-0来研究针对灰葡萄孢菌的体内测试,结果表明,在100μg/ mL浓度下,化合物的预防效果高达72.80%。初步的机理研究表明,用5 µg / mL的A-0处理后,灰葡萄孢菌的菌丝体出现弯曲,塌陷,并且细胞膜的完整性可能会受损。改变了菌丝的活性氧产生,线粒体膜电位和核形态,破坏了