{2-Bromo-3-[(1S,5S)-5-(tert-butyl-dimethyl-silanyloxy)-2-oxo-cyclohexyloxy]-4-methoxy-benzyl}-methyl-carbamic acid tert-butyl ester 、
甲氧羰基亚甲基三苯基正膦 以
四氢呋喃 为溶剂,
反应 72.0h,
以77%的产率得到[(2R,4R)-2-{2-Bromo-3-[(tert-butoxycarbonyl-methyl-amino)-methyl]-6-methoxy-phenoxy}-4-(tert-butyl-dimethyl-silanyloxy)-cyclohex-(E)-ylidene]-acetic acid methyl ester