pimelea ligustrina/huratoxin

Serial dilutions of mixtures of the closely related diterpenoid orthoesters simplexin and huratoxin were added to cultures of chicken embryo fibroblast cells and bovine erythroid cells; the mixture was lethal at concentrations of 100 micrograms/ml and 1 microgram/ml, respectively. Morphological

Investigation of Pimelea elongata ("Lakebed Pimelea") afforded 18 tigliane- and daphnane-type diterpenes (1-18). Eight of these were new compounds: four (1-3, 5) tigliane esters and four (7, 8, 10, 11) daphnane orthoesters. The 10 known compounds were 12-O-decanoylphorbol-13-acetate (4), P. simplex