2-(chloromethyl)-4-methoxy-3,5-dimethylpyridinium hydrochloride   、                                                                                      methyl 6-(2-{4-[(5-methoxy-2-mercaptobenzimidazolyl)sulfonyl]-3,5-dimethylphenoxy}acetylamino)hexanoate                                                                                                                                                              在
                                                                                                                                                                                 
potassium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         DMF (N,N-dimethyl-formamide)                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以70%的产率得到methyl 6-{2-[4-({5-methoxy-2-[(4-methoxy-3 5-dimethyl(2-pyridyl))methylthio]benzimidazolyl}sulfonyl)-3,5-dimethylphenoxy]acetylamino}hexanoate