1 H 　 NMR ( DMSO - d 6 , 400 MHz ) δ 10 . 31 ( s , 1 H ) , 9 . 65 ( s , 1 H ) , 9 . 14 ( s , 1 H ) , 7 . 75 ( br , 2 H ) , 7 . 67 ( s , 1 H ) , 7 . 00 ( d , J = 8 Hz , 2 H ) , 6 . 84 ( s , 1 H ) , 6 . 75 ( s , 1 H ) , 3 . 92 ( s , 3 H ) , 3 . 81 ( s , 3 H ) , 3 . 75 - 3 . 58 ( m , 2 H ) , 3 . 04 - 2 . 72 ( m , 3 H ) , 2 . 44 - 2 . 08 ( m , 4 H ) , 1 . 87 - 1 . 34 ( m , 4 H ) ( 화합물 24 ) ;