6,7-dimethoxy-2-veratryl-1,2,3,4-tetrahydro-isoquinoline-1-carbonitrile

4-(1-cyclopentylpiperidin-4-yl)butyronitrile

N,N-diethyl-4-cyano-1-hydroxy-2-methyl-3-phenyl-2-azetidinecarboxamide

(3R,8R,9RS)-5-(benzyloxypropyl)-8-tert-butyldimethylsilyloxy-3-phenyloxazolo[3,2-a]piperidine-5-carbonitrile