氰化钠 、
sodium (8S,10R,11R,11aS)-13-methyl-7-oxo-5,7,8,9,10,11,11a,12-octahydro-8,11-epiminoazepino[1,2-b]isoquinoline-10-carboxylate 在
lithium aluminium tetrahydride 作用下,
以29%的产率得到(8R,10S,11S,11aS)-10-(hydroxymethyl)-13-methyl-5,7,8,9,10,11,11a,12-octahydro-8,11-epiminoazepino[1,2-b]isoquinoline-7-carbonitrile