(2'S,3'R,4'R,5'R,4aS,5aR)-4'-acetoxy-3'-benzyloxy-6-benzyl-5'-(1H,3H-pyrimidyl-2,4-dion-1-yl)-6-aza-3,5-dioxa-bicyclo[4.2.1]nonanespiro[1.2']tetrahydro-furan 在
palladium on activated charcoal
吡啶 、
环己烯 作用下,
以
乙醇 为溶剂,
反应 17.0h,
生成 (2R,3R,4R,5S,9R,11S)-3,4,9-triacetoxy-11-acetylamino-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-1,7-dioxaspiro[4.6]undecane