6-(N,N-dimethylaminoethyl) 2-methyl 3-methoxymethoxy-5-methyl-2'-nitro-1,1'-biphenyl-2,6-dicarboxylate                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以78.2%的产率得到5-Hydroxy-3-methyl-2'-nitro-biphenyl-2,6-dicarboxylic acid 2-(2-dimethylamino-ethyl) ester 6-methyl ester; hydrochloride