4-????-4-????

4-????-4-???? ??? ???

???(??):: 4-methyloctan-4-olide;5-Butyl-5-methyldihydrofuran-2(3H)-one;5-Butyldihydro-5-methyl-3H-furan-2-one;5-Butyldihydro-5-methyl-2-(3H)-furanone;5-Methyl-5-butyl-4,5-dihydro-2(3H)-furanone

?? ?? 2

4-????-4-???? ??

???( 2)?? ??

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