Methyl (2,5-Diacetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-α-D-glycero-D-galacto-2-nonulopyranosid)onate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 4.0h,
生成 (2R,4S,5R,6R)-4-Acetoxy-2,5-bis-acetylamino-6-((1R,2R)-1,2,3-trihydroxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester