(1R,2R,6S,7S)-4-(tert-Butyl-dimethyl-silanyl)-2-((R)-(1S,2R,4R)-2-hydroxy-7,7-dimethyl-bicyclo[2.2.1]hept-1-ylmethanesulfinyl)-4-aza-tricyclo[5.2.1.02,6]dec-8-ene-3,5-dione 在
silica gel 、 sodium hydride 作用下,
以
正己烷 、
乙酸乙酯 、
N,N-二甲基甲酰胺 为溶剂,
反应 22.0h,
生成 (1R,4S)-(+)-N-<2''-(1,3-dioxolan-2-yl)ethyl>-2-exo-(<(1'S,2'R,4'R,4S)-2'-hydroxy-7',7'-dimethylbicyclo<2.2.1>heptan-1'-yl>methylsulfinyl)bicyclo<2.2.1>hept-5-ene-2-endo,3-endodicarboximide