(1R,3R,5S,8R)-8-(tert-Butyl-dimethyl-silanyloxy)-3-nitro-2-oxa-bicyclo[3.3.1]non-6-ene-3,5-dicarboxylic acid diethyl ester 在
三乙胺 作用下,
以
氯仿 为溶剂,
反应 18.0h,
以60%的产率得到(1R,5R,8R)-8-(tert-Butyl-dimethyl-silanyloxy)-2-oxa-bicyclo[3.3.1]nona-3,6-diene-3,5-dicarboxylic acid diethyl ester