4-[(5S,6S)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hydroxy-[1,3]dioxan-4-yl]-piperidine-2,6-dione 在
吡啶 、 sodium tetrahydroborate 作用下,
以
四氢呋喃 为溶剂,
生成 2,2-Dimethyl-propionic acid (4S,5S)-6-(2,6-dioxo-piperidin-4-yl)-5-hydroxy-[1,3]dioxan-4-ylmethyl ester