Multistep Synthesis and Nematicidal Activity of 2-(8-azabicyclo[3.2.1]octan-3-yl)-3-imino-2,3-dihydro-1H-isoindol-1-One Derivatives
作者:Jun Xu、Tianjiao Yang、Jiayi Wang、Gonghua Song
DOI:10.1007/s10593-021-02864-z
日期:2021.1
Novel 2-(8-azabicyclo[3.2.1]octan-3-yl)-3-imino-2,3-dihydro-1H-isoindol-1-ones derived from 5-HT3 receptor antagonists hexahydroazepinylbenzamides were designed and synthesized through isocyanide insertion reaction. All target compounds were evaluated against pinewood nematodes B. xylophilus and root-knot nematodes M. incognita. Good lethal rate (75%) for 3-(tert-butylimino)-5-chloro-2-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-2,3-dihydro-1H-isoindol-1-one and serious nervous curl effect against pinewood nematodes B. xylophilus for 3-(tert-butylimino)-2-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-2,3-dihydro-1H-isoindol-1-one were observed at 10 mg/l. The inhibition activities of 3-[(4-methoxyphenyl)imino]-2-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-2,3-dihydro-1H-isoindol-1-one against root-knot nematodes M. incognita were 84% at 160 mg/l and 60% at 20 mg/l for in vitro test and test tube test, respectively.
通过异氰插入反应,设计并合成了源自5-HT3受体拮抗剂六氢氮杂卓基苯甲酰胺的新型2-(8-氮杂双环[3.2.1]辛烷-3-基)-3-亚胺基-2,3-二氢-1H-异吲哚-1-酮。所有目标化合物均对松材线虫B. xylophilus和根结线虫M. incognita进行了评估。在10 mg/L浓度下,观察到3-(叔丁基亚胺基)-5-氯-2-(8-甲基-8-氮杂双环[3.2.1]辛烷-3-基)-2,3-二氢-1H-异吲哚-1-酮对松材线虫B. xylophilus具有75%的良好致死率,以及3-(叔丁基亚胺基)-2-(8-甲基-8-氮杂双环[3.2.1]辛烷-3-基)-2,3-二氢-1H-异吲哚-1-酮对松材线虫B. xylophilus产生严重神经卷曲效应。对于根结线虫M. incognita,3-[(4-甲氧基苯基)亚胺基]-2-(8-甲基-8-氮杂双环[3.2.1]辛烷-3-基)-2,3-二氢-1H-异吲哚-1-酮的抑制活性在体外测试和试管测试中分别为160 mg/L时84%和20 mg/L时60%。