EP3615541A1 - POLYMORPHS AND SOLID FORMS OF (S)-2-((2-((S)-4-(DIFLUOROMETHYL)-2-OXOOXAZOLIDIN-3-YL)-5,6-DIHYDROBENZO[F]IMIDAZO[1,2-D][1,4]OXAZEPIN-9-YL)AMINO)PROPANAMIDE, AND METHODS OF PRODUCTION