4-[2'-cyclohexylamino-4-(5-oxo-4,5-dihydro-[1,3,4]oxadiazol-2-yl)-[2,4']bipyridinyl-6-yl]-piperazine-1-carboxylic acid tert-butyl ester 、
三氟乙酸 在
acetonitrile-water 、
ammonium hydroxide 、
5-(2'-cyclohexylamino-6-piperazin-1-yl-[2,4']bipyridinyl-4-yl)-3H-[1,3,4]oxadiazol-2-one 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以to give the title compound 5-(2′-cyclohexylamino-6-piperazin-1-yl-[2,4′]bipyridinyl-4-yl)-3H-[1,3,4]oxadiazol-2-one的产率得到5-(2'-cyclohexylamino-6-piperazin-1-yl-[2,4']bipyridinyl-4-yl)-3H-[1,3,4]oxadiazol-2-one