4'-methylbenzoyl 2,3,4,6-tetra-O-acetyl-β-D-selenoglucopyranoside 、
4-碘吡啶 在
哌嗪 、 palladium [2'-(amino-κN)[1,1'-biphenyl]-2-yl-κC][[5-(diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl]diphenylphosphine-κP](methanesulfonato-κO) 、
caesium carbonate 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以87%的产率得到(2R,3R,4S,5R,6S)-2-(acetoxymethyl)-6-(pyridin-4-ylselanyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate