1,1-dimethylethyl {(3R,4S)-1-[(3-fluoro-8-oxo-5,6-dihydro-4H,8H-pyrido[3,2,1-de]-1,5-naphthyridin-6-yl)methyl]-3-hydroxy-4-piperidinyl}carbamate 、
三氟乙酸 在
甲醇 、 resin 作用下,
以
二氯甲烷 为溶剂,
反应 19.0h,
以to give the title compound as a white solid (0.386 g)的产率得到6-{[(3R,4S)-4-amino-3-hydroxy-1-piperidinyl]methyl}-3-fluoro-5,6-dihydro-4H,8H-pyrido[3,2,1-de]-1,5-naphthyridin-8-one trifluoroacetate