(+/-)-(3
c-ethyl-9,10-dimethoxy-(11b
r)-1,3,4,6,7,11b-hexahydro-2
H-pyrido[2,1-
a]isoquinolin-2
c-yl)-acetic acid-(3,4-dimethoxy-phenethylamide)                                                                                                                                                              在
                                                                                                                                                                                 
三氯氧磷   、                                                                                                  
苯                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
(2R,3R,11bS)-2-[(6,7-dimethoxy-3,4-dihydroisoquinolin-1-yl)methyl]-3-ethyl-9,10-dimethoxy-2,3,4,6,7,11b-hexahydro-1H-benzo[a]quinolizine