trideuteromethyl 2,3,4-tri-O-acetyl-6-O-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-β-D-glucopyranosyl)-β-D-galactopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
三氯化硼                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以55%的产率得到Acetic acid (2R,3S,4R,5R,6R)-3-acetoxy-2-acetoxymethyl-5-acetylamino-6-((2R,3S,4S,5R,6S)-3,4,5-triacetoxy-6-chloro-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-yl ester