1-((1R,4R,6R,7R,8R)-7-acetoxy-8-benzyloxy-1-methyl-5-oxa-2-thiaspiro[3.4]oct-6-yl)-1H-pyrimidine-2,4-dione 在
甲醇 、
potassium carbonate 作用下,
以95%的产率得到1-((1R,4R,6R,7R,8R)-8-benzyloxy-7-hydroxy-1-methyl-5-oxa-2-thiaspiro[3.4]oct-6-yl)-1H-pyrimidine-2,4-dione