1-[2-(2-dimethylamino-ethyl)-6-methyl-benzo[b]thiophen-3-yl]-1-pyridin-2-yl-ethanol                                                                                                                                                              在
                                                                                                                                                                                 
乙酸乙酯   、                                                                                                  Brine   、                                                                                                  
Sodium sulfate-III   、                                                                                                  Dimethyl-{2-[6-methyl-3-(1-pyridin-2-yl-vinyl)-benzo[b]thiophen-2-yl]-ethyl}-amine                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
三氟乙酸   、                                                                                         
硫酸                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以afforded dimethyl-{2-[6-methyl-3-(1-pyridin-2-yl-vinyl)-benzo[b]thiophen-2-yl]-ethyl}-amine (Compound 4-6)的产率得到Dimethyl-{2-[6-methyl-3-(1-pyridin-2-yl-vinyl)-benzo[b]thiophen-2-yl]-ethyl}-amine