methyl (S)-2-phenyl-2-({(2R,4S,6S)-4-[(tetra-O-acetyl-α-D-galactopyranosyl)methyl]-6-(thiazol-2-yl)tetrahydropyran-2-yl}oxy)acetate                                                                                                                                                              在
                                                                                                                                                                                 
potassium cyanide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以93%的产率得到methyl (S)-2-phenyl-2-({(2R,4S,6S)-4-[(α-D-galactopyranosyl)methyl]-6-(thiazol-2-yl)tetrahydropyran-2-yl}oxy)acetate