New α-Methylene-γ-Butyrolactone Derivatives as Potential Fungicidal Agents: Design, Synthesis and Antifungal Activities
作者:Yongling Wu、Delong Wang、Yanqing Gao、Juntao Feng、Xing Zhang
DOI:10.3390/molecules21020130
日期:——
biological activity, forty-six new ester and six new ether derivatives containing α-methylene-γ-butyrolactone moieties were synthesized, and their fungicidal activities against Colletotrichum lagenarium and Botrytis cinerea were investigated. Most of the synthesized compounds showed moderate to significant fungicidal activity. Among them, halogen atom-containing derivatives showed better activity than others
考虑到α-亚甲基-γ-丁内酯部分是卡拉布隆结构中的主要生物官能团并具有一定的农业生物活性,46种含α-亚甲基-γ的新酯和6种新醚衍生物合成了β-丁内酯部分,并研究了它们对炭疽病菌和灰葡萄孢菌的杀真菌活性。大多数合成的化合物表现出中等至显着的杀真菌活性。其中,含卤原子的衍生物比其他化合物表现出更好的活性,尤其是化合物6a、d对C.lagenarium表现出优异的杀菌活性,IC50值为7.68和8.17 μM。构效关系(SAR)分析表明,苯环上带有吸电子基团的酯类衍生物比带有给电子基团的酯类衍生物具有更好的杀菌活性。通过启发式方法获得了定量构效关系(QSAR)模型(R2 = 0.9824,F = 203.01,S2 = 0.0083)。构建的模型揭示了对 C.lagenarium 的杀真菌活性与这些化合物的分子结构之间的强相关性。这些结果有望证明有助于低毒高效的 α-亚甲基-γ-丁内酯类杀菌剂的设计和探索。构建的模型揭示了对