哌啶盐酸盐 、
2-ethyl-4-chloro-2-phenyl-butyronitrile 、
3-氮杂双环[2.2.2]辛烷盐酸盐 、
溴乙基二苯乙腈 以there is obtained 2-phenyl-2-ethyl-4-piperidino-butyronitrile hydrochloride melting at about 200° - 203° C.的产率得到2-ethyl-2-phenyl-4-piperidino-butyronitrile; hydrochloride