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???(??):: aspyrone;(5S,6R)-5,6-Dihydro-5-hydroxy-6-methyl-3-[(2S,3S)-3-methyloxiranyl]-2H-pyran-2-one;(5S)-5,6-Dihydro-5α-hydroxy-6β-methyl-3-[(2S,3S)-3-methyloxiran-2-yl]-2H-pyran-2-one;2H-Pyran-2-one, 5,6-dihydro-5-hydroxy-6-methyl-3-[(2S,3S)-3-methyl-2-oxiranyl]-, (5S,6R)-

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Griseofulvic acid 6-demethylgriseofulvin Amphotericin B 1,3,5-Cyclohexanetrione, 2,2,4,4-tetramethyl-6-(2-methyl-1-oxobutyl)-

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