5-methyl-1-[(1R,5R,7R,8S)-2-oxo-8-phenylmethoxy-5-(phenylmethoxymethyl)-6-oxabicyclo[3.2.1]octan-7-yl]pyrimidine-2,4-dione 、
甲基锂 以
四氢呋喃 、
乙醚 为溶剂,
以58%的产率得到1-[(1S,2S,5R,7R,8S)-2-hydroxy-2-methyl-8-phenylmethoxy-5-(phenylmethoxymethyl)-6-oxabicyclo[3.2.1]octan-7-yl]-5-methylpyrimidine-2,4-dione