乙酸酐 、
methyl 4-deoxy-4-[(1'R,4'R,5'S,6'S)-4',5',6'-trihydroxy-3'-(hydroxymethyl)cyclohex-2'-enyl]amino-β-D-glucopyranoside 在
吡啶 作用下,
以58%的产率得到methyl 2,3,6-tri-O-acetyl-4-deoxy-4-[(1'R,4'R,5'S,6'S)-4',5',6'-triacetoxy-3'-(acetoxymethyl)cyclohex-2'-enyl]amino-β-D-glucopyranoside