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

20(R)- and 20(S)-Simarolide Epimers Isolated from Simaba cuneata: Chemical Shifts Assignment of Carbon and Hydrogen Atoms A New Antimalarial Quassinoid from Simaba guianensis Cytotoxic Quassinoids from <i>Simaba cedron</i> Plant Anticancer Agents XXXV. Further Constituents of<i>Simaba multiflora</i>, Isolation of secoisolariciresinol diesters from stems of Simaba cuneata The secondary metabolites of aff. Samadera SAC-2825: An australian simaroubaceae with unusual chemistry The secondary metabolites of aff. Samadera SAC-2825: An australian simaroubaceae with unusual chemistry Indole Alkaloids and Quassin from Quassia africana Canthinones from Simaba cuspidata Studies on the alkaloids from Picrasma quassioides BENNET. IX. Structures of two .BETA.-carboline dimeric alkaloids, picrasidines-G and -S.