Flavipucine [3′-isovaleryl-6-methylpyridine-3-spiro-2′-oxiran-2(1H),4(3H)-dione], an antibiotic from Aspergillus flavipes
Abstract
The structures of three metabolites produced by a strain of Aspergillus flavipes are discussed including a previously described antibiotic, which is shown to be 3′-isovaleryl-6-methylpyridine-3-spiro-2′-oxiran-2(1H),4(3H)-dione (1).