1 H NMR [ CDCl 3 , 300 MHz ] 8 . 22 ( d , 1 H , J = 7 . 1 Hz ) , 8 . 10 ( d , 2 H , J = 7 . 3 Hz ) , 7 . 76 - 7 . 68 ( m , 3 H ) , 7 . 37 ( dd , 2 H , J = 5 . 4 , 8 . 6 Hz ) , 7 . 06 ( d , 1 H , J = 2 . 1 Hz ) , 6 . 98 ( t , 2 H , J = 8 . 6 Hz ) , 6 . 79 ( dd , 1 H , J = 2 . 2 , 7 . 1 Hz ) , 3 . 93 ( qui , 1 H , J = 6 . 7 Hz ) , 3 . 12 ( q , 2 H , J = 7 . 5 Hz ) , 1 . 55 ( d , 3 H , J = 6 . 7 Hz ) , 1 . 45 ( t , 3 H , J = 7 . 5 Hz ) , 1 . 31 ( d , 3 H , J = 6 . 7 Hz ) . 수율 = 67 %.