methyl 3,4,6-tri-O-benzyl-2-O-α-D-mannopyranosyl-α-D-mannopyranoside 、
氯磷酸二苯酯 在
吡啶 作用下,
以55.5%的产率得到Phosphoric acid (2R,3S,4S,5S,6R)-6-((2S,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-methoxy-tetrahydro-pyran-3-yloxy)-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester diphenyl ester