1-O-(2-oxoethyl)-4'-O-benzyloxycarbonyl-4'-O-demethyl-1-epipodophyllotoxin 、
methyl 2-amino-2-deoxy-4,6-O-ethylidene-α-D-glucopyranoside 生成 (5S,8aR,9R)-5-[2-[[(4aR,6S,7R,8R,8aS)-8-hydroxy-6-methoxy-2-methyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl]amino]ethoxy]-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-[2]benzofuro[5,6-f][1,3]benzodioxol-8-one