Monoacetyl-filicinsaeure (2-Acetyl-3.5-Dihydroxy-6.6-dimethyl-cyclohexadien-(2.4)-on) 在
sodium hydroxide 、 disodium hydrogenphosphate buffer 作用下,
反应 0.25h,
生成 4-Acetyl-2-[1-(5-acetyl-2,6-dihydroxy-3,3-dimethyl-4-oxo-cyclohexa-1,5-dienyl)-meth-(E)-ylidene]-5-hydroxy-6,6-dimethyl-cyclohex-4-ene-1,3-dione