InChI=1/C15H13F2NO3/c1-2-21-15(20)13-11-4-3-5-18(11)12-7-10(17)9(16)6-8(12)14(13)19/h6-7H,2-5H2,1H ethyl 7,8-difluoro-5-oxo-1,2,3,5-tetrahydropyrrolo[1,2-a]quinoline-4-carboxylate pyrrolo[1,2-a]quinoline-4-carboxylic acid, 7,8-difluoro-1,2,3,5-tetrahydro-5-oxo-, ethyl ester