Acetic acid (2S,3R,4S,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-{4-[2-mercapto-6-(2,3,5-trimethoxy-phenyl)-5,6-dihydro-pyrimidin-4-yl]-phenoxy}-tetrahydro-pyran-3-yl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以69%的产率得到(2R,3S,4S,5R,6S)-2-Hydroxymethyl-6-{4-[2-mercapto-6-(2,3,5-trimethoxy-phenyl)-5,6-dihydro-pyrimidin-4-yl]-phenoxy}-tetrahydro-pyran-3,4,5-triol