potassium carbonate   、                                                                                      
3-[2-(4-Fluorophenyl)-ethylsulfamoyl]-thiophene-2-carboxylic acid methyl ester   、                                                                                      
碘甲烷                                                                                                                                                                                                                                                                                                          以an oily substance (3.38 g) was obtained, in the same way as Preparation Example 52的产率得到3-{[2-(4-fluorophenyl)-ethyl]-methyl-sulfamoyl}-thiophene-2-carboxylic acid methyl ester