6,7-Dihydro-2-methyl-1-(2-methylaminoethyl)-indolo[1,7-ab][1]benzazepine hydrochloride   、                                                                                      
氨   、                                                                                      
乙醚                                                                                                                                                                                              以
                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                                                        以to yield the pure base 6,7-dihydro-2-methyl-1-(2-methylaminoethyl)-indolo[1,7-ab][1]benzazepine as a pale-yellow viscous syrup of boiling point ca 160° C (air-bath temperature)/10- 5 mm Hg的产率得到6,7-Dihydro-2-methyl-1-(2-methylaminoethyl)indolo<1.7-ab>
benzazepin