Phenylnaphthalic anhydrides from water hyacinth (Pontederia crassipes Mart.)
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Data
2021-12-01
Autores
Costa, Mayra F. [UNESP]
Luiz, Mayara M. [UNESP]
de Souza, Leonardo C. [UNESP]
Tempone, Andre G.
Lago, João Henrique G.
Nascimento, Isabele R. [UNESP]
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Resumo
Nineteen compounds were isolated from the aerial parts and roots of Pontederia crassipes Mart. [≡ Eichhornia crassipes (Mart.) Solms] (Pontederiaceae), including the new 4-hydroxy-5-phenyl-1,8-naphthalic anhydride (1) and 4-hydroxy-5-(4-hydroxyphenyl)-1,8-naphthalic anhydride (2). In addition, chemically related phenylnaphthalic acid derivatives 1a and 2a were obtained. The structures of the compounds were established by 1D and 2D NMR and ESI-HRMS analysis. 8-Phenylphenalenones 3 and 4 were evaluated for antiprotozoal activity against trypomastigote forms of Trypanosoma cruzi and displayed moderate activity.
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Palavras-chave
Eichhornia crassipes, Phenylnaphthalic anhydrides, Phenylphenalenones, Pontederia crassipes, Pontederiaceae, Trypanosoma cruzi
Como citar
Phytochemistry Letters, v. 46, p. 1-5.