2-((4aR,5R,7S,8aS)-1-benzyl-8a-ethynyl-7-methyldecahydroquinolin-5-yl)acetonitrile 、
(4aR,5S,10bR,12R)-1-benzyl-8-((tert-butyldimethylsilyl)ethynyl)-12-methyl-2,3,4,4a,5,6-hexahydro-1H-5,10b-propano-1,7-phenanthroline 在
carbon monoxide,cobalt,cyclopenta-1,3-diene 作用下,
以
四氢呋喃 为溶剂,
反应 10.0h,
以29%的产率得到(5R,5′R,6S,6′S,14R,14′R,16R,16′R)-1,1′-dibenzyl-11-(tert-butyldimethylsilyl)-16,16′-dimethyl-1,1′,2,2′,3,3′,4,4′,5,5′,6,6′,7,7′,-15,15′,16,16′,17,17′-icosahydro-10,10′-bi(5,10b-propano1,7-phenanthroline)