(2S,5S)-5-{5'-chloro-6-[(tetrahydro-pyran-4-ylmethyl)-amino]-[2,4']bipyridinyl-2'-ylcarbamoyl}-2-methyl-piperidine-1-carboxylic acid benzyl ester 在
钯 氢气 、
乙酸乙酯 、 silica gel 、 dichloromethane MeOH Et3N 、
碳酸氢钠 、 Brine 、
Sodium sulfate-III 作用下,
以
四氢呋喃 为溶剂,
反应 18.0h,
以providing (3R,6R)-/(3S,6S)-6-methyl-piperidine-3-carboxylic acid {5′-chloro-6-[(tetrahydro-pyran-4-ylmethyl)-amino]-[2,4′]bipyridinyl-2′-yl}-amide (425 mg)的产率得到(3S,6S)-6-methylpiperidine-3-carboxylic acid {5'-chloro-6-[(tetrahydropyran-4-ylmethyl)amino]-[2,4']bipyridinyl-2'-yl}amide