4-(1,3-dioxolan-2-yl)-3-oxabutyl 2,3-di-O-acetyl-4,6-dideoxy-4-(2,4-di-O-acetyl-3-deoxy-L-glycero-tetronyl)-α-D-mannopyranoside 在
甲酸 、
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 2.75h,
生成 (S)-N-{(2R,3S,4S,5S,6S)-4,5-Dihydroxy-2-methyl-6-[2-(2-oxo-ethoxy)-ethoxy]-tetrahydro-pyran-3-yl}-2,4-dihydroxy-butyramide