ethyl (2S)-2-azido-2-[(2R,3R,4R,5R)-3,4-diacetyloxy-5-(2,4-dioxopyrimidin-1-yl)oxolan-2-yl]acetate 在
Pd-BaSO
4 氢气 作用下,
以
甲醇 为溶剂,
生成 (S)-Amino-[(2R,3R,4R,5R)-3,4-diacetoxy-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-yl]-acetic acid ethyl ester