英文名称: | 1,8-naphthyridine-3-carboxylic acid, 1,4-dihydro-1-ethyl-6-fluoro-4-oxo-7-(4-py | 1,4-dihydro-1-ethyl-6-fluoro-4-oxo-7-(4-pyridinyl)-1,8-naphthyridine-3-c arbo | 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-pyridyl)-1,8-naphthyridine-3-car boxy | 1,4-dihydro-1-ethyl-6-fluoro-4-oxo-7-(4-pyridinyl)-8-naphthyridine-3-carboxylic acid |
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