mg/L. Among these analogues, 6b showed 100% mortality against Nilaparvata lugens (LC50 = 0.163 mg/L) and 90% against Aphis medicagini at 4 mg/L. SARs suggested that the insecticidal potency of our designed cis-nitenpyram analogues was dual-controlled by the size and species of the ester groups. The moleculardocking simulations revealed that the structural uniqueness of these analogues may lead to a unique
A novel series of bis-aromatic ring neonicotinoidanalogues (1a–1l, 2a–2c), were designed and prepared by introducing a new substituted aromatic ring into nitenpyram and forming a tetrahydropyrimidine ring, with the cis-configuration confirmed by X-ray diffraction. Preliminary bioassays showed most analogues exhibited good insecticidal activities at 100 mg/L, and compound 1d and 2a were highly potent
Synthesis, Insecticidal Activity, and Molecular Docking Studies of Nitenpyram Analogues with a Flexible Ester Arm Anchored on Tetrahydropyrimidine Ring
作者:Chuanwen Sun、Xiao Xu、Yonghua Xu、Dingrong Yan、Ting Fang、Tianyan Liu
DOI:10.1021/jf1049563
日期:2011.5.11
a new series of nitenpyam analogues with flexible ester arm were synthesized. Preliminary bioassays indicated that all of our newly designed nitenpyam analogues exhibited good insecticidalactivity at 100 mg/L, while analogues 4c and 4d afforded the best in vitro activity, and both of them had 100% mortality at 20 mg/L. The SAR studies suggested that their insecticidal potency was dual-controlled
Synthesis, Insecticidal Activity, Crystal Structure, and Molecular Docking Studies of Nitenpyram Analogues with an ω-Hydroxyalkyl Ester Arm Anchored on the Tetrahydropyrimidine Ring
作者:Chuan-Wen Sun、Ting Fang、Jing Wang、Zhi-bing Hao、Shi-bing Nan
DOI:10.1021/jf3024479
日期:2012.9.26
action between neonicotinoids and insect nicotinicacetylcholinereceptor (nAChR), a new series of nitenpyram analogues with an ω-hydroxyalkyl ester arm anchored on the tetrahydropyrimidine ring was designed and synthesized to further enhance the strength of the hydrogen-bonding action they display in binding with the nAChR. The structures of the target compounds were characterized by 1H NMR, IR, and