(S)-3-[N-2-phenoxyethyl-[N-4-(6-phenoxyhex-4-yn-2-yloxy)but-2-ynyl]amino]propanenitrile                                                                                                                                                              在
                                                                                                                                                                                 
carbon monoxide,cobalt,cyclopenta-1,3-diene                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
氯苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.25h,
                                                                                                                以87%的产率得到(8S)-8-methyl-2-(2-phenoxyethyl)-6-(phenoxymethyl)-1,3,4,7,8,10-hexahydropyrano[4,3-c][1,6]naphthyridine