6,7-Dimethoxy-1-methyl-1H-isoquinoline-2-carboxylic acid (1S,2R,5S)-5-methyl-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                                                                                                                            以95%的产率得到6,7-Dimethoxy-1-methyl-3,4-dihydro-1H-isoquinoline-2-carboxylic acid (1S,2R,5S)-5-methyl-2-(1-methyl-1-phenyl-ethyl)-cyclohexyl ester