3-(3,4,8,9-tetrahydro-6-methoxy-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)benzoic acid hydrochloride   、                                                                                      
6-amino-1,4-thiazepin-5-one                                                                                                                                                                                                                                                                                                          以51%的产率得到N-(Hexahydro-5-oxo-1,4-thiazepin-6-yl)-3-(3,4,8,9-tetrahydro-6-methoxy-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)benzamide