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Molecules 2010, 15(6), 4267-4282; doi:10.3390/molecules15064267
Article

Synthesis and Bioactivity of N-Benzoyl-N'-[5-(2'-substituted phenyl)-2-furoyl] Semicarbazide Derivatives

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1 Key Laboratory of Pesticide Chemistry and Application, Ministry of Agriculture, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China 2 Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing 100081, China 3 State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Science, Peking University, Beijing 100083, China
* Author to whom correspondence should be addressed.
Received: 5 May 2010 / Revised: 31 May 2010 / Accepted: 2 June 2010 / Published: 11 June 2010
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Abstract

In order to find novel chitin synthesis inhibitors (CSIs) with good activity, benzoylphenylurea, a typical kind of CSIs, was chosen as the lead compound and 15 novel derivatives containing furan moieties were designed by converting the urea linkage of benzoylphenylureas into a semicarbazide and changing the aniline part into furoyl groups. The title compounds were synthesized by the reaction of substituted benzoyl isocyanates with 5-(substituted phenyl)-2-furoyl hydrazine, and the structures were confirmed by IR, 1H-NMR, elemental analysis and single crystal X-ray diffraction analyses (compound E2). The bioassay results indicated that the title compounds exhibit good insecticidal activity, especially towards Plutella xylostella L., but had lower fungicidal activity. Inspiringly, the title compounds possessed obvious anticancer activity against human promyelocytic leukemic cell line (HL-60), and some of the title compounds also had activity against human hepatocellular carcinoma cell line (Bel-7402), human gastric carcinoma cell line (BGC-823), and human nasopharyngeal carcinoma cell line (KB). The results indicated that the linkage in the lead compounds was important to the bioactivity and spectra. The modification on the urea linkage is an effective strategy to discover new pesticide and drug candidates.
Keywords: chitin synthesis inhibitors; benzoylphenylurea; semicarbazide; synthesis; bioactivity chitin synthesis inhibitors; benzoylphenylurea; semicarbazide; synthesis; bioactivity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Cui, Z.; Ling, Y.; Li, B.; Li, Y.; Rui, C.; Cui, J.; Shi, Y.; Yang, X. Synthesis and Bioactivity of N-Benzoyl-N'-[5-(2'-substituted phenyl)-2-furoyl] Semicarbazide Derivatives. Molecules 2010, 15, 4267-4282.

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