preferred_name: 2-PIPERAZINEACETONITRILE, 4-(7-(3-AMINO-2-FLUORO-5-METHYL-6-(TRIFLUOROMETHYL)PHENYL)-2-(((2R,7AS)-2-FLUOROTETRAHYDRO-1H-PYRROLIZIN-7A(5H)-YL)METHOXY)-7,8-DIHYDRO-5H-PYRANO(4,3-D)PYRIMIDIN-4-YL)-1-(2-FLUORO-1-OXO-2-PROPEN-1-YL)-, (2S)-