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Preparation and Photosynthesis-Inhibiting Activity of Novel Dihalogenated 3-Hydroxynaphthalene-2-carboxanilides
Published: 14 November 2019 by MDPI in The 23rd International Electronic Conference on Synthetic Organic Chemistry session Bioorganic, Medicinal and Natural Products Chemistry
In this study a series of nine 3-hydroxynaphthalene-2-carboxanilides, disubstituted on the anilide ring by fluorine, chlorine and bromine in various positions, was prepared by microwave-assisted synthesis and characterized. The compounds were tested for their activity related to the inhibition of photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts. The PET-inhibiting activity of the compounds was within a wide range, but rather moderate; the highest activity within the series of the compounds was observed for N-(3,5-difluorophenyl)-3-hydroxynaphthalene-2-carboxamide. The compounds were found to inhibit PET in photosystem II.
Keywords: Hydroxynaphthalene-carboxamides; Halogenated; PET inhibition; Spinach chloroplasts; Structure-activity relationships
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