An improved process for the preparation of (4R-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate is described where a hydroxy ester derivative is converted in two steps to the desired product, as well as valuable intermediates used in the process.
本发明提供了一种改进的制备(4R-cis)-
1,1-二甲基乙基6-
氰甲基-2,2-二甲基-1,3-二氧杂
环丁烷-4-
乙酸酯的方法,其中羟基酯衍
生物经过两步转化为所需的产物,同时提供了该过程中使用的有价值的中间体。