Chemical constituents from Paliavana tenuiflora Mansf. (Gesneriaceae). (October 2018)

• Record Type: Journal Article
• Authors: Sales, Kaio Aragão; Ferreira da Silva, Evandro; Ramalho de Figueiredo, Pedro Thiago; Carlos de O. Costa, Vicente; Scotti, Marcus Tullius; de Fátima Agra, Maria; Tavares, Josean Fechine; Sobral da Silva, Marcelo
• Is Part Of: Biochemical systematics and ecology. Volume 80(2018)
• Page Start: 76
• Page End: 80
• Publication Date: 2018-10
• Subjects: Paliavana tenuiflora -- Gesneriaceae -- Quinones -- Terpenoids -- Phenolic compounds; Chemotaxonomy -- Periodicals; Biochemical variation -- Periodicals; Ecology -- Periodicals; Biochemistry -- Periodicals; Ecology -- Periodicals; Chimiotaxinomie -- Périodiques; Variation biochimique -- Périodiques; Écologie -- Périodiques; 578.012
• DOI: 10.1016/j.bse.2018.07.002
• Languages: English
• ISSNs: 0305-1978

Abstract

Abstract: The study aimed to investigate the chemical composition of Paliavana tenuiflora Mansf., an endemic Brazilian species that belongs to Gesneriaceae family. By chromatographic, spectroscopic and cheminformatics techniques it was possible to isolate and elucidate eleven compounds: a new naphthoquinone named as tenuiflorone (1 ), besides known compounds 7-metoxy-8-hydroxy-α-dunnione (2 ), tectoquinone (3 ), 2-( p -hydroxyphenyl) ethyl hexacosanoate (4 ), 2-(3′, 4′-dihydroxyphenyl) ethyl hexacosanoate (5 ), caffeic acid (6 ), presilphiperfolan-9-ol (7 ), β-sitosterol (8 ), stigmasterol (9 ), β-sitosterol-3- O -d -glucopyranoside (10 ) and stigmasterol-3- O -d -glucopyranoside (11 ). This is the first time that secondary metabolites were isolated from species belonging to Paliavana genus, with the isolation of a new naphthoquinone named as tenuiflorone. The results obtained contribute to the chemotaxonomy of the Gesneriaceae family. Graphical abstract: