1 H NMR ( 400 MHz , DMSO - d 6 ) : δ [ ppm ] = 1 . 75 - 1 . 88 ( m , 2 H ) , 2 . 36 - 2 . 45 ( m , 2 H ) , 2 . 46 - 2 . 60 ( m , 2 H 및 DMSO 신호 ) , 3 . 67 - 3 . 75 ( m , 1 H ) , 3 . 85 ( dt , 1 H ) , 4 . 81 - 5 . 02 ( m , 2 H ) , 5 . 47 ( t , 1 H ) , 7 . 58 - 7 . 64 ( m , 2 H ) , 8 . 10 - 8 . 15 ( m , 2 H ) , 8 . 18 ( s , 1 H ) , 8 . 62 ( s , 1 H ) , 8 . 65 ( s , 1 H ) , 10 . 09 ( d , 1 H ) .