6,6,6-trichloro-hexanenitrile

4-Z-2,4-dimethyl-6-oxo-2,4-heptadienonitrile

1-hydroxy-2,6-dimethylcyclohexanecarbonitrile

1(RS)-amino-3(RS)-(diethoxyphosphinyl)cyclopentanecarbonitrile

(4S)-1-(tert-butoxycarbonyl)-4-cyano-L-proline ethyl ester