1-{6-[4-(benzyloxy)piperidin-1-yl]-4-[(6-cyano-4-oxo-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)carbonyl]pyridin-3-yl}-3-methylurea 在
palladium 10% on activated carbon
氢气 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 16.0h,
以27%的产率得到1-{6-(4-hydroxypiperidin-1-yl)-4-[(6-methyl-4-oxo-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidin]-1'-yl)carbonyl]pyridin-3-yl}-3-methylurea