Longithorones J and K, two new cyclofarnesylated quinone derived metabolites from the australian ascidian aplidium longithorax

Chemical investigation of a Great Barrier Reef ascidian, Aplidium longithorax, has resulted in the isolation of two new cyclofarnesylated quinone-derived compounds, longithorones J (1) and K (2). Longithorone J (1) is the first example of a gamma-hydroxy-cyclohexenone in this structure class. Longithorone K (2) is a dihydro analogue of longithorone B.