1-(p-Fluor-phenyl)-2-methylamino-aethanol   、                                                                                      
2-bromo-7-oxo-4,5,6,7-tetrahydro-benzo[b]thiophene-3-sulfonyl chloride                                                                                                                                                                                                                                                                                                          以the title compound (373 mg) was obtained as a light brown candy-like substance, in the same way as Preparation Example 41的产率得到2-bromo-7-oxo-4,5,6,7-tetrahydro-benzo[b]thiophene-3-sulfonic acid [2-(4-fluorophenyl)-2-hydroxy-ethyl]-methyl-amide