8-hydroxy-5-[(1R,2S)-1-hydroxy-2-(propan-2-ylamino)butyl]-1H-quinolin-2-one 8-hydroxy-5-[(1R,2S)-1-hydroxy-2-(isopropylamino)butyl]-1H-quinolin-2-one 8-hydroxy-5-[(1R,2S)-1-hydroxy-2-(isopropylamino)butyl]carbostyril NCGC00024999-02 NCGC00024999-01 Tocris-1102