6-<3-<4-(2-methoxyphenyl)-1-piperazinyl>-2-methyl-3-oxopropyl>-5,6,7,8-tetrahydro-1,6-naphthyridine                                                                                                                                                              在
                                                                                                                                                                                 lithium aluminium tetrahydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                                                        以88%的产率得到6-{3-[4-(2-Methoxy-phenyl)-piperazin-1-yl]-2-methyl-propyl}-5,6,7,8-tetrahydro-[1,6]naphthyridine