[(3RS, 4RS)-3-(4-Chloro-phenyl)-4-(5-chloro-pyridin-2-yloxymethyl)-piperidin-1-yl]-[4-(3-methyl-[1,2,4]oxadiazol-5-yl)-phenyl]-methanone 、 、
6-{1-[(3S,4S)-3-(4-chlorophenyl)piperidin-4-yl]ethylamino}nicotinonitrile 、
1-(5-cyanopyridin-2-yl)piperidine-4-carboxylic acid 在
Ethanol heptane 作用下,
以to yield 4-{(3S,4S)-3-(4-Chloro-phenyl)-4-[(SR)-1-(5-cyano-pyridin-2-ylamino)-ethyl]-piperidine-1-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-carbonitrile as off-white solid的产率得到4-{(3S,4S)-3-(4-Chloro-phenyl)-4-[(SR)-1-(5-cyano-pyridin-2-ylamino)-ethyl]-piperidine-1-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile