1 H - NMR . δ ( CDCl 3 ) : 7 . 60 ( d , 1 H , J = 7 . 5 Hz ) , 7 . 53 ( d , 1 H , J = 8 . 0 Hz ) , 7 . 37 ( d , 2 H , J = 7 . 5 Hz ) , 7 . 29 ( td , 1 H , J = 7 . 5 Hz , 1 . 0 Hz ) , 7 . 23 ( td , 1 H , J = 7 . 5 Hz , 1 . 0 Hz ) , 7 . 19 ( d , 1 H , J = 1 . 5 Hz ) , 7 . 06 ( m , 8 H ) , 6 . 97 ( dd , 1 H , J = 8 . 0 Hz , 1 . 5 Hz ) , 2 . 41 - 2 . 51 ( brm , 2 H ) , 1 . 79 - 1 . 95 ( m , 8 H ) , 1 . 70 - 1 . 77 ( m , 2 H ) , 1 . 33 - 1 . 45 ( brm , 14 H ) , 1 . 19 - 1 . 30 ( brm , 2 H ) .