N-[(3aS,4S,6R,6aS)-6-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-2-ethoxy-2-oxoethanimine oxide 以
甲苯 、 xylene 为溶剂,
反应 124.0h,
生成
(S)-1-[(3aS,4S,6R,6aS)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-4-oxo-piperidine-2-carboxylic acid ethyl ester