N-benzyloxycarbonyl-1,5-dideoxy-1,5-imino-D-xylitol 、
α-D-xylopyranosyl fluoride 、
乙酸酐 在
Bhxglycosynthase E
334G mutant 、
吡啶 、
4-二甲氨基吡啶 作用下,
反应 40.0h,
以53%的产率得到benzyl (3S,4S,5R)-3,4-diacetoxy-5-[tri-O-acetyl-β-D-xylopyranosyl-(1->4)-di-O-acetyl-β-D-xylosyloxy]piperidine-1-carboxylate