英文别名
                        1-ethyl-4,7-dioxo-1,4,7,8-tetrahydro-[1,8]naphthyridine-3-carboxylic acid 1(2)H-tetrazol-5-ylamide;1-Ethyl-1,4-dihydro-7-hydroxy-4-oxo-N(1H-tetrazol-5-yl)-1,8-naphthyridine-3-carboxamide;1-ethyl-4,7-dioxo-N-(2H-tetrazol-5-yl)-8H-1,8-naphthyridine-3-carboxamide