methyl 3-bromomethyl-5-tert-butylbenzoate 、
2,2-dimethyl-5-[3-[(triphenylmethyl)thio]propyl]-[1,3]dioxane-4,6-dione 、
potassium carbonate 在
苄基三乙基氯化铵 乙酸乙酯 、
magnesium sulfate 、 crude material 、
ethyl acetate n-hexane 作用下,
以
乙腈 为溶剂,
反应 16.0h,
以to afford 5-(3-tert-butyl-5-methoxycarbonyl-benzyl)-2,2-dimethyl-5-[3-[(triphenyl-methyl)thio]propyl]-[1,3]dioxane-4,6-dione X (14.0 g, 79%) as a white solid的产率得到5-(3-Tert-butyl-5-methoxycarbonyl-benzyl)-2,2-dimethyl-5-[3-[(triphenylmethyl)thio]propyl]-[1,3]dioxane-4,6-dione