Author(s): Sass, Daiane C. [UNESP] ; Ferreira, Alexsandro E. ; Vieira, Gabrielle [UNESP] ; Rezende, Ana Laura M. ; Kovatch, Pedro Y. ; Palaretti, Vinícius ; Constantino, Mauricio G. ; Heleno, Vladimir C.G.
Date: 2022
Persistent ID: http://hdl.handle.net/11449/229126
Origin: Oasisbr
Subject(s): Eremantholides; Multiplicities clarifying; NMR data; Sesquiterpene lactones
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Five eremantholides were prepared from natural furanoheliangolides by reductions with Stryker's reagent, in previous works. We thus decided to perform a detailed and complete assignment of all 1H and 13C NMR data for those compounds. Through NMR experiments such as 1H NMR, 13C {1H} NMR, gCOSY, gHMQC, gHMBC, J-resolved, among others, it was achieved an unequivocal assignment of 1H and 13C NMR data for all studied substances, with measurement of all H/H homonuclear coupling constants and the clarification of all hydrogen signals multiplicities. Those data were not completely available yet in the literature.
Departamento de Biologia Geral e Aplicada Instituto de Biociências de Rio Claro UNESP
Grupo de Pesquisas em Produtos Naturais Universidade de Franca
Departamento de Química FFCLRP Universidade de São Paulo
Departamento de Biologia Geral e Aplicada Instituto de Biociências de Rio Claro UNESP
CNPq: 2009/0949-1
CAPES: 308348/2018-4
