(2S,4S,5R,6R)-4-Acetoxy-5-acetylamino-2-(pyridin-2-ylsulfanyl)-6-((1S,2R)-1,2,3-triacetoxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 、
N-[(2S,3R,4R,5S,6R)-2-methoxy-6-(2-oxoethyl)-4-phenylmethoxy-5-triethylsilyloxyoxan-3-yl]acetamide 在
samarium diiodide 作用下,
以
四氢呋喃 为溶剂,
反应 0.17h,
以93%的产率得到methyl (2S,4S,5R,6R)-5-acetamido-2-[2-[(2R,3S,4R,5R,6S)-5-acetamido-6-methoxy-4-phenylmethoxy-3-triethylsilyloxyoxan-2-yl]-1-hydroxyethyl]-4-acetyloxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate