When Penicillium islandicum is grown on freshly dug green peanuts it elaborates
two chlorine-containing alkaloids which are the first naturally occurring
chlorinated ergot bases discovered. The bases have been separated by chromatography on silica gel and are stereoisomeric, being readily interconverted by
refluxing in methanol. This alkaloid forms an amorphous white powder and has
the structure shown above which is based upon spectroscopic data.
Cole et ai., Can. 1. Microbiol., 22, 741 (1976)
