Complete 1H and 13C NMR structural assignments for five semi-synthetic eremantholides - Sass, Daiane C; Ferreira, Alexsandro E; Vieira, Gabrielle; Rezende, Ana Laura M; Kovatch, Pedro Y; Palaretti, Vinicius; Constantino, Maurício Gomes; Heleno, Vladimir C. G (Journal of Molecular Structure, 2021)