(2R,3R,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-2-[(2R,3R,4S,5R,6R)-3,5-bis-benzyloxy-2-benzyloxymethyl-6-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-benzyloxymethoxy-6-methyl-tetrahydro-pyran-4-yloxy)-tetrahydro-pyran-4-yloxy]-tetrahydro-pyran-3-ol 在
2-氯-1,3,2-苯并二氧磷杂环己烷-4-酮 作用下,
以
乙腈 为溶剂,
以70%的产率得到4-methoxybenzyl 2,4-di-O-benzyl-3-O-<2,4,6-tri-O-benzyl-3-O-<3,4,6-tri-O-benzyl-α-D-galactopyranosyl 2-(triethylammonium phosphonate)>-α-D-glucopyranosyl>-α-L-rhamnopyranoside