3-甲酰基-1H-吲哚-2-羧酸乙酯   、                                                                                      
3-bromomethyl-5-fluoro-benzo[b]thiophene                                                                                                                                                                                                                                                                                                          以to give 1-(5-fluoro-benzo[b]thiophen-3-ylmethyl)-3-formyl-1H-indole-2-carboxylic acid ethyl ester as white solid的产率得到1-(5-fluoro-benzo[b]thiophen-3-ylmethyl)-3-formyl-1H-indole-2-carboxylic acid ethyl ester