乙酸酐 、 Benzyl-O-(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->3)-O-<(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->6)>-O-(2,4-di-O-benzyl-β-D-mannopyranosyl)-(1->4)-O-(6-O-acetyl-3-O-benzyl-2-desoxy-2-phthalimido-β-D-glucopyranosyl)-... 在
吡啶 、
sodium methylate 作用下,
生成
Benzyl-O-(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->3)-O-<(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->6)>-O-(2,4-di-O-benzyl-β-D-mannopyranosyl)-(1->4)-O-(2-acetamido-6-O-acetyl-3-O-benzyl-2-desoxy-β-D-glucopyranosyl)-...