重氮甲烷   、                                                                                                                                                                                                                                                                                    以
                                                                                         
四氢呋喃   、                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                                                        以14.0 mg的产率得到methyl {methyl 2,3-di-O-benzoyl-4-O-{2',3'-bis-O-(4-methoxyphenylmethyl)-4'-O-[2'',3''-bis-O-(4-methoxyphenylmethyl)-6''-methyl-α-D-galactopyranuronosyl]-6'-methyl-α-D-galactopyranuronosyl}-α-D-galactopyranosid}uronate