Medium dependant production and the structure elucidation of corymbiferone (1) from the fungus Penicillitan hordei grown on oatmeal and macerated tulip, yellow onion and red onion agars are reported. Compound 1 possesses an unusual oxygenated aromatic structure with a lactone bridge preventing full aromatization of the molecule. resulting in several unusual chemical shifts.
Tetrahedron Letters, 2005, Vol 46, Issue 18, p. 3225-3228
stimulation; corymbiferone; P. hordei; plant tissue media