1-[(4-{[(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-6-yl)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
甲醇 、
乙醚 、
二氯甲烷 为溶剂,
生成 (1R)-1-[(4-{[(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-6-yl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-4H,9H-imidazo[1,2,3-ij]-1,8-naphthyridine-4,9-dione hydrochloride 、 1-[(4-{[(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-6-yl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-4H,9H-imidazo[1,2,3-ij]-1,8-naphthyridine-4,9-dione hydrochloride