1-AMINO-9-ETHYL-5-FLUORO-1,2,3,9,13,15-HEXAHYDRO-9-HYDROXY-4-METHYL-13-THIOXO-10H,12H-BENZO(DE)PYRANO(3',4':6,7)INDOLIZINO(1,2-B)QUINOLIN-10-ONE, (1S,9S)-
1-amino-9-ethyl-5-fluoro-1,2,3,9,13,15-hexahydro-9-hydroxy-4-methyl-13-thioxo-10h,12h-benzo(de)pyrano(3',4':6,7)indolizino(1,2-b)quinolin-10-one, (1s,9s)-