Acetic acid (2S,3S,4S,5R,6R)-3,5-diacetoxy-2-carbamoyl-6-((2R,3R,4S,5R,6R)-3,4,5-triacetoxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-yl ester 、
叔丁醇 在
lead(IV) acetate 作用下,
以
吡啶 为溶剂,
反应 4.0h,
以81%的产率得到methyl 2,3,4-tri-O-acetyl-6-O-<(5S)-5-tert-butyloxycarbonylamino-2,3,4-tri-O-acetyl-β-D-xylopyranosyl>-β-D-clucopyranoside