Data/hora: 09/06/2024 07:44:17

Provedor de dados: 	Anais da Academia Brasileira de Ciências	
País: 	Brazil	
Título: 	Phenolic compounds from the rhizome of Renealmia nicolaioides Loes.: a new diarylheptanoid	
Autores: 	GEVÚ,KATHLYN V.; CARVALHO,MÁRIO G. DE; SILVA,ILNA G. DA; LIMA,HELENA R.P.; CASTRO,ROSANE N.; CUNHA,MAURA DA.	
Data: 	2019-01-01	
Ano: 	2019	
Palavras-chave: 	Flavonoid; Alpinieae tribe; Zingiberaceae; Underground organ.	
Resumo: 	Abstract: This study aims to identify phenolic compounds in dichloromethane and methanolic extracts of the rhizome of Renealmia nicolaioides collected in the North Region of Brazil. Two known diarylheptanoids, 1,7-bis(4-hydroxyphenyl)-(1E)-1-hepten-3-one (1), and 5R-1,7-bis(4-hydroxyphenyl)-1E-hepten-5-ol (2), and a new one (1R,2S,5S)-2-hydroxy-1,7(p-hydroxyphenyl)-centrolobine (3), as well as one flavonoid, 3-metoxi-quercetin (4) were isolated by chromatographic procedure and identified by spectroscopic techniques (1H and13C NMR, HRMS and CD). The acetyl derivative of 2 was used to confirm its structure. All four compounds are reported for the first time for this genus, and this is the first occurrence of compound 1 as a natural metabolite. The results reported here are unprecedented for the genus Renealmia.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100403	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/0001-3765201920180312	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.91 n.1 2019	
Fonte: 	info:eu-repo/semantics/openAccess