20(R)- and 20(S)-Simarolide Epimers Isolated from Simaba cuneata: Chemical Shifts Assignment of Carbon and Hydrogen Atoms

Autor: Vieira Ivo José Curcino, Braz Filho Raimundo, Rodrigues Filho Edson, Vieira Paulo Cezar, Silva Maria Fátima G.F. da, Fernandes João Batista
Jazyk: angličtina
Rok vydání: 1999
Předmět:
Zdroj: Journal of the Brazilian Chemical Society, Vol 10, Iss 1, Pp 76-84 (1999)
Druh dokumentu: article
ISSN: 0103-5053
Popis: The C25-quassinoids 20(R)- and 20(S)-simarolide were isolated from Simaba cuneata, Simaroubaceae. The structures of these two compounds were characterized by spectral data, including 1D and 2D NMR spectra which were also used for the complete assignment of the carbon and hydrogen atom chemical shifts.
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