Minor cassane diterpenoids of caesalpinia bonduc
Seven cassane diterpenes, including the known caesaldekarin A, were isolated from the roots of Caesalpinia bonduc, collected in Barbados. The 1H and 13C NMR spectra of all seven compounds were completely assigned by using a combination of 2D NMR experiments, which included 1H-1H COSY, HSQC, HMQC, and HMBC sequences.
Lyder
DL
Laboratory of Bioorganic Chemistry, Department of Biological & Chemical Sciences, University of the West Indies, Cave Hill Campus, Barbados, and Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 1A1, Canada.
Peter
SR
Tinto
WF
Bissada
SM
McLean
S
Reynolds
WF