、 alkaline earth salt of/the/ methylsulfuric acid 生成
methyl 4-O-(2-acetamido-4,6-di-O-acetyl-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-2,3,6-tri-O-acetyl-β-D-glucopyranoside 、 methyl 4-O-(2-acetamido-4,6-di-O-acetyl-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-2,3,6-tri-O-acetyl-α-D-glucopyranoside