1-O-(3,4,6-tri-O-acetyl-2-benzyloxycarbonylamino-2-deoxy-β-D-glucopyranosyl)-4'-O-benzyloxycarbonyl-4'-O-demethyl-1-epipodophyllotoxin 在
zinc diacetate 作用下,
以
甲醇 为溶剂,
反应 6.0h,
以57%的产率得到1-O-(2-benzyloxycarbonylamino-2-deoxy-β-D-glucopyranosyl)-4'-O-benzyloxycarbonyl-4'-O-demethyl-1-epipodophyllotoxin