1 H - NMR ( 400 MHz , CDCl 3 ) : δ = 8 . 10 ∼ 7 . 98 ( m , 7 H ) , 7 . 96 ∼ 7 . 90 ( m , 1 H ) , 7 . 84 ∼ 7 . 67 ( m , 4 H ) , 7 . 65 ∼ 7 . 61 ( m , 1 H ) , 7 . 55 ∼ 7 . 42 ( m , 10 H ) , 7 . 30 ∼ 7 . 21 ( m , 8 H ) , 7 . 20 ∼ 7 . 12 ( m , 2 H ) , 7 . 08 ∼ 7 . 04 ( m , 1 H ) .