Synthesis, Activity, and QSAR Studies of Tryptamine Derivatives on Third-instar Larvae of Aedes Aegypti Linn
作者:Rafael Oliveira、Thaysnara Brito、Angelita Nepel、Emmanoel Costa、Andersson Barison、Rogeria Nunes、Roseli Santos、Socrates Cavalcanti
DOI:10.2174/1573406409666131202144010
日期:2014.8.4
Special attention has been given to the mosquito Aedes aegypti Linn. (Diptera: Culicidae) owing to numerous
dengue epidemic outbreaks worldwide. Failure to control vector spreading is accounted for unorganized urban growth and
resistance to larvicides and insecticides. Therefore, researchers are currently searching for new and more efficient larvicides
and insecticides to aid dengue control measures. Triptamine is known to affect insect behavior, development, and
physiology. Expression of this compound in plants has reduced the growth rate of herbivore insects. In view of these facts,
it was of our interest to synthesize triptamine amide derivatives as potential larvicides against Ae. aegypti, establishing a
Structure-Activity Relationship. Eleven amide derivatives of triptamine were synthesized, characterized, and evaluated for
their larvicidal activity against third-instar Ae. aegypti larvae. N-(2-(1H-indol-3-yl)ethyl)-2,2,2-trichloroacetamide exhibited
the highest overall larvicidal potency, while N-(2-(1H-Indol-3-yl)ethyl) acetamide displayed the lowest larvicidal potency.
A regression equation correlating the larvicidal activity with Log P was obtained. We have found a clear relationship
between the larvicidal activity of non-chlorinated compounds and Log P. Analysis of the relationship between Log P
and larvicidal activity against Ae. aegypti may be useful in the evaluation of potential larvicidal compounds.
埃及伊蚊受到了特别关注。 (双翅目:蚊科)由于许多
登革热疫情在全球爆发。未能控制病媒传播是造成无组织城市增长和
对杀幼虫剂和杀虫剂的抗性。因此,研究人员目前正在寻找新的、更有效的杀幼虫剂
和杀虫剂以协助登革热控制措施。已知曲巴胺会影响昆虫的行为、发育和
生理。这种化合物在植物中的表达降低了食草昆虫的生长速度。鉴于这些事实,
我们感兴趣的是合成曲巴胺酰胺衍生物作为潜在的抗伊蚊幼虫剂。埃及伊蚊,建立
结构-活性关系。合成、表征并评估了 11 种曲巴胺的酰胺衍生物
它们对三龄伊蚊的杀幼虫活性。埃及伊蚊幼虫。 N-(2-(1H-吲哚-3-基)乙基)-2,2,2-三氯乙酰胺表现出
总体杀幼虫效力最高,而 N-(2-(1H-吲哚-3-基)乙基)乙酰胺显示出最低的杀幼虫效力。
获得了将杀幼虫活性与Log P 相关的回归方程。我们已经找到了明确的关系
非氯化物杀幼虫活性与 Log P 之间的关系。Log P 之间的关系分析
和针对伊蚊的杀幼虫活性。埃及伊蚊可能有助于评估潜在的杀幼虫化合物。