6-O-Acetyl-4-O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-desoxy-α-D-glucopyranosyl)-3-O-(6-O-acetyl-2-azido-4-O-benzyl-2-desoxy-3-O-trichloracetyl-α-D-galactopyranosyl)-2-azido-2-desoxy-α-D-galactopyranosylbromid 、
1,6-Di-O-acetyl-2,3-di-O-benzyl-α-D-glucopyranose 在
calcium sulfate 、 4 A molecular sieve 、 silver perchlorate 、 silver carbonate 作用下,
生成 1,6-Di-O-acetyl-4-O-<6-O-acetyl-4-O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-desoxy-α-D-glucopyranosyl)-3-O-(6-O-acetyl-2-azido-4-O-benzyl-2-desoxy-3-O-trichloracetyl-α-D-galactopyranosyl)-2-azido-2-desoxy-α-D-galactopyranosyl>-2,3-di-O-benzyl-α-D-...