4-methoxyphenyl 2-O-benzyl-d7-4,6-O-cyclohexylidene-α-D-mannopyranoside   、                                                                                      
methyl 3-O-[D7]benzyl-4,6-O-cyclohexylidene-2-O-2-naphthylmethyl-1-thio-β-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
2,3-二氯-5,6-二氰基-1,4-苯醌                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷                                                                                  为溶剂,
                                                                                                                                                                                        以97%的产率得到2-naphthaldehyde (4-methoxyphenyl 2-O-[D7]benzyl-4,6-O-cyclohexylidene-α-D-mannopyranosid-3-yl) (methyl 3-O-[D7]benzyl-4,6-O-cyclohexylidene-1-thio-β-D-glucopyranosid-2-yl) acetal