| biologically active tetranorditerpenoids from the fungus sclerotinia homoeocarpa causal agent of dollar spot in turfgrass. | nine new tetranorditerpenoid dilactones (2-10), together with two previously reported norditerpenoids dilactones (1, 11), and two known putative biosynthetic intermediates, oidiolactone-e (12) and 13, were isolated from an ethyl acetate extract of a culture medium of sclerotinia homoeocarpa. structures and absolute configurations of these compounds were determined by spectroscopic methods and confirmed by x-ray crystallographic analysis of representative compounds. compounds were evaluated for h ... | 2009 | 19928902 |