화합물 124 LC / MS F : 99 % 순도 , UV 254 nm , Rt = 3 . 232 분 , ESI 423 . 2 ( M + H ) . 1 H NMR ( 400 MHz , DMSO - d 6 ) δ 9 . 80 ( s , 1 H ) , 7 . 57 ( d , J = 2 . 4 Hz , 1 H ) , 7 . 44 ( dd , J = 8 . 2 , 2 . 4 Hz , 1 H ) , 7 . 20 ( d , J = 7 . 4 Hz , 1 H ) , 7 . 12 ( d , J = 8 . 2 Hz , 1 H ) , 6 . 45 ( d , J = 7 . 3 Hz , 1 H ) , 6 . 38 ( s , 1 H ) , 3 . 30 ? 3 . 20 ( m , 3 H ) , 3 . 06 ( m , 2 H ) , 2 . 69 ( t , J = 6 . 2 Hz , 2 H ) , 2 . 59 ? 2 . 49 ( m , 2 H ) , 2 . 43 ? 2 . 31 ( m , 2 H ) , 2 . 24 ( s , 3 H ) , 1 . 86 ? 1 . 65 ( m , 6 H ) , 1 . 21 ( d , J = 7 . 0 Hz , 3 H ) .