6-({(3R,4S)-4-[(2,3-dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]-3-hydroxy-1-piperidinyl}methyl)-3-fluoro-5,6-dihydro-4H,8H-pyrido[3,2,1-de]-1,5-naphthyridin-8-one 在
盐酸 作用下,
以
1,4-二氧六环 、
甲醇 为溶剂,
生成 6-({(3R,4S)-4-[(2,3-dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]-3-hydroxy-1-piperidinyl}methyl)-3-fluoro-5,6-dihydro-4H,8H-pyrido[3,2,1-de]-1,5-naphthyridin-8-one dihydrochloride