A new ferulol derivative isolated from the aerial parts of Ferulago nodosa (L.) Boiss. growing in Sicily (Italy).

Ferulago nodosa (L.) Boiss. (Apiaceae) is a species occurring in the Balkan-Tyrrhenian area being present in Crete, Greece, Albania, and probably in Macedonia. Although the western disjointed population of Sicily has been classified as an endemic sub-species, F. nodosa subsp. geniculata (Guss.) Troia & Raimondo, it is not officially accepted. From the aerial parts of the Sicilian accession of this species four known metabolites ( 1 - 4 ), and a new ferulol derivative ( 5 ), were isolated and characterized. The structure of the new compounds was determined by mean of extensive NMR spectroscopic experiments.