(2R,3S,6S)-3-acetoxy-2-(4-methoxybenzyloxy)-6-((R)-8,8,9,9-tetramethyl-3-oxo-1-phenyl-2,7-dioxa-4-aza-8-siladecan-5-yl)tetrahydro-2H-pyran-4-one 、
甲氧羰基亚甲基三苯基正膦 以
苯 为溶剂,
反应 12.0h,
以95%的产率得到benzyl (R)-2-(tert-butyldimethylsilyloxy)-1-((2S,5R,6R,E)-5-hydroxy-4-((E)-methoxycarbonylidene)-6-(4-methoxybenzyloxy)tetrahydro-2H-pyran-2-yl)ethylcarbamate