Punctatins B and C (antibiotics M95154 and M95155): further sesquiterpene alcohols from the fungus Poronia punctata
Abstract
Further studies on metabolites of the dung fungus Poronia punctata(Linnaeus ex Fries) have furnished the structure of punctatins B (2) and C (3) as a trihydroxycaryophyllene isomer of punctatin A (1) and a novel tetracyclic hemi-succinate ester of close biogenetic origin, respectively.