(1R)-1-[(4-{[(5-chloro-6-methyl-3-pyridinyl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-4H,9H-imidazo[1,2,3-ij]-1,8-naphthyridine-4,9-dione 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
以49%的产率得到(1R)-1-[(4-{[(5-chloro-6-methyl-3-pyridinyl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-4H,9H-imidazo[1,2,3-ij]-1,8-naphthyridine-4,9-dione hydrochloride