3-(2'-acetamido-3',4',6-tri-O-acetyl-2'-deoxy-α-D-glucopyranosyl)-1-propene 、
(-)-menthone nitrone 以
甲苯 为溶剂,
反应 36.0h,
以87%的产率得到[(2R,3S,4R,5S,6R)-5-acetamido-3,4-diacetyloxy-6-[[(2S,2'S,3aS,5'R,6S)-5,5'-dimethyl-4-oxo-2'-propan-2-ylspiro[3,3a-dihydro-2H-imidazo[1,5-b][1,2]oxazole-6,1'-cyclohexane]-2-yl]methyl]oxan-2-yl]methyl acetate