1 H 　 NMR ( DMSO - d 6 , 400 MHz ) δ 10 . 73 ( s , 1 H ) , 9 . 83 ( s , 1 H ) , 9 . 26 ( s , 1 H ) , 8 . 02 ( d , J = 8 Hz , 2 H ) , 7 . 74 ( s , 1 H ) , 7 . 46 ( d , J = 8 Hz , 2 H ) , 6 . 87 ( d , J = 4 Hz , 1 H ) , 6 . 78 ( dJ = 4 Hz , 1 H ) , 3 . 93 ( s , 3 H ) , 3 . 82 ( s , 3 H ) , 3 . 57 ( br , 1 H ) , 3 . 39 - 3 . 32 ( m , 4 H ) , 2 . 73 - 2 . 64 ( m , 2 H ) , 1 . 22 ( s , 1 H ) , 0 . 92 ( d , J = 8 Hz , 6 H ) ( 화합물 59 ) .