Synthesis and insecticidal evaluation of novel N′-tert-butyl-N′-substitutedbenzoyl-N-5-chloro-6-chromanecarbohydrazide derivatives
摘要:
A series of novel N'-tert-butyl- N'-substitutedbenzoyl-N-5-chloro-6-chromanecarbohydrazide derivatives were synthesized, and their larvicidal activities against Oriental armyworm were evaluated. The results of bioassays indicated that most of these title compounds exhibit higher larvicidal activities than RH-5849, and several of them somewhat lower than the commercial insecticide tebufenozide. The larvicidal activities are strongly associated with the types and patterns of substitution on the benzene, and 3,5-dimethyl, 2-nitro-4-chloro and 3-methyl derivatives are most prominent in increasing activity. Toxicity assays indicated that these derivatives could induce a premature, abnormal, and lethal larval moult. (c) 2007 Elsevier Ltd. All rights reserved.
Compounds of formula I:
are disclosed, as are pharmaceutical compositions containing such compounds. Methods of treating neurological or psychiatric diseases and disorders in a subject in need thereof are also disclosed.
式 I 的化合物:
以及含有此类化合物的药物组合物。还公开了治疗有需要的对象的神经或精神疾病和失调的方法。