5-Fluoro-2-phenylbenzo[b]thiophene-3-acetonitrile   、                                                                                      
2-phenylbenzo[b]thiophene-3-ethanamine hydrochloride                                                                                                                                                                                                                                                                                                          以affords 5-fluoro-2-phenylbenzo[b]thiophene-3-ethanamine hydrochloride, melting at 260° C. (decomposition)的产率得到5-fluoro-2-phenylbenzo[b]thiophene-3-ethanamine hydrochloride