3,4,6-tri-O-benzyl-2-nitro-D-galactal   、                                                                                      2,3,4-tri-O-acetyl-6-O-benzyl-α-D-galactose                                                                                                                                                              在
                                                                                                                                                                                 
potassium tert-butylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯   、                                                                                         
正庚烷                                                                                  为溶剂,
                                                                                                                                                    反应 2.17h,
                                                                                                                生成                                                 Acetic acid (2S,3R,4S,5S,6R)-4,5-diacetoxy-6-benzyloxymethyl-2-((2R,3R,4R,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-nitro-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl ester   、                                                                                             
Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-benzyloxymethyl-2-((2R,3R,4R,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-nitro-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl ester