4-bromo-2-(4-methyl-4,5-dihydro-1(3)H-imidazol-2-yl)-benzenethiol   、                                                                                      
4-chloro-3-nitro-5-sulfamoyl-benzoic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 12-bromo-3-methyl-5-sulfamoyl-2,3-dihydro-dibenzo[
b,
f]imidazo[1,2-
d][1,4]thiazepine-7-carboxylic acid methyl ester