InChI=1/C20H15FN2O4/c1-3-27-20(25)15-10-14-16(26-2)9-8-13-17(14)18(22-15)23(19(13)24)12-6-4-11(21)5-7-12/h4-10H,3H2,1-2H ethyl 1-(4-fluorophenyl)-5-methoxy-2-oxo-1,2-dihydropyrrolo[4,3,2-ij]isoquinoline-7-carboxylate pyrrolo[4,3,2-ij]isoquinoline-7-carboxylic acid, 1-(4-fluorophenyl)-1,2-dihydro-5-methoxy-2-oxo-, ethyl ester