(S)-3-[N-(2-methylpropyl)-[N-4-(5-phenylpent-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89%的产率得到(8S)-8-methyl-2-(2-methylpropyl)-6-phenyl-1,3,4,7,8,10-hexahydropyrano[4,3-c][1,6]naphthyridine