6(R)-<1(S)-Methyl-2-oxobutyl>-4(S)-<1(S),3(S),5(R),7-tetramethyl-2,4-dioxo-7(E)-decenyl>-2(S),5(S)-dimethyl-2-(p-methoxyphenyl)-1,3-dioxane 生成 (E,2R,4R)-2-[(2R,3S,4S,5S,6R)-2,4-dihydroxy-3,5-dimethyl-6-[(2R)-3-oxopentan-2-yl]oxan-2-yl]-4,6-dimethylnon-6-en-3-one