Synonyms: 4H-Pyran-4-one,2-[3-(3,5-dimethyl-4-oxo-6-pentyl-4H-pyran-2-yl)-1-methyl-2-oxobutyl]-6-ethyl-3,5-dimethyl-,(R*,R*)-(?à)-; 4H-Pyran-4-one,2-[3-(3,5-dimethyl-4-oxo-6-pentyl-4H-pyran-2-yl)-1-methyl-2-oxobutyl]-6-ethyl-3,5-dimethyl-,(R*,R*)-; Maurapyrone B