Structure determination of an organometallic 1-(diazenylaryl)ethanol: A novel toxin subclass from the web of the spider Nephila clavipes

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2004-01-01

Autores

Marques, M. R.
Mendes, M. A.
Tormena, C. F.
Souza, B. M.
Ribeiro, S. P.
Rittner, R.
Palma, Mario Sergio [UNESP]

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Verlag Helvetica Chimica Acta Ag

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A novel chemical subclass of toxin, [1-(3-diazenylphenyl) ethanol]iron, was identified among the compounds present in the web of the spider Nephila clavipes. This type of compound is not common among natural products, mainly in spider-venom toxins; it was shown to be a potent paralytic and/or lethal toxin applied by the spider over its web to ensure prey capture only by topical application. The structure was elucidated by means of ESI mass spectrometry, H-1-NMR spectroscopy, high-resolution (HR) mass spectrometry, and ICP spectrometry. The structure of [1-( 3-diazenylphenyl)ethanol] iron and the study of its insecticidal action may be used as a starting point for the development of new drugs for pest control in agriculture.

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Chemistry & Biodiversity. Zurich: Verlag Helvetica Chimica Acta Ag, v. 1, n. 6, p. 830-838, 2004.