2-((4aR,5R,7S,8aS)-8a-Ethynyl-1-formyl-7-methyldecahydroquinolin-5-yl)acetonitrile 、
(4aR,5S,10bR,12R)-1-benzyl-12-methyl-8-((trimethylsilyl)ethynyl)-2,3,4,4a,5,6-hexahydro-1H-5,10b-propano-1,7-phenanthroline 在
carbon monoxide,cobalt,cyclopenta-1,3-diene 、
三苯基膦 作用下,
以
1,4-二氧六环 为溶剂,
以43%的产率得到(5R,5′R,6S,6′S,14R,14′R,16R,16′R)-1-Benzyl-16,16′-dimethyl-10′-(trimethylsilyl)-1,2,2′,3,3′,4,4′,5,5′,6,6′,7,7′,15,16,16′,17,17′-octadecahydro[10,11′-bi(5,10b-propano1,7-phenanthroline)]-1′(15′H)-carbaldehyde