Acetic acid (2R,3S,4R,5R,6R)-6-((2R,3S,4R,5R,6R)-3-acetoxy-6-allyloxy-4-benzyloxy-5-benzyloxycarbonylamino-tetrahydro-pyran-2-ylmethoxy)-2-acetoxymethyl-4-benzyloxy-5-benzyloxycarbonylamino-tetrahydro-pyran-3-yl ester 在
ammonium hydroxide 作用下,
反应 4.5h,
以75%的产率得到