1 - 67 δ = 9 . 39 ( 1 H , s ) , 8 . 90 ( 4 H , d ) , 8 . 68 ( 1 H , s ) , 8 . 54 ( 1 H , s ) , 8 . 30 ( 1 H , d ) , 8 . 25 ( 1 H , d ) , 8 . 15 ( 1 H , d ) , 7 . 91 ( 1 H , d ) , 7 . 64 ~ 7 . 52 ( 10 H , m ) , 7 . 47 ~ 7 . 35 ( 4 H , m ) , 7 . 29 ( 1 H , t ) , 1 . 53 ~ 1 . 50 ( 6 H , d )