ethyl 1-cyclopropyl-6-fluoro-4-oxo-7-(4-oxo-4,5,6,7-tetrahydro-1-benzothien-2-yl)-1,4-dihydro[1,8]naphthyridine-3-carboxylate 在
盐酸 作用下,
以
乙醇 、
二氯甲烷 为溶剂,
以0.065 g (44%)的产率得到1-cyclopropyl-6-fluoro-4-oxo-7-(4-oxo-4,5,6,7-tetrahydro-1-benzothien-2-yl)-1,4-dihydro[1,8]naphthyridine-3-carboxylic acid