. 1 H NMR ( 400 MHz , CDCl 3 , 300 K ) δ 1 . 56 ( t , J = 7 . 0 Hz , 3 H ) , 2 . 28 ( s , 3 H ) , 2 . 39 ( s , 3 H ) , 4 . 05 ( s , 6 H ) , 4 . 18 ( q , J = 7 . 0 Hz , 2 H ) , 6 . 51 ( d , J = 5 . 3 Hz , 1 H ) , 7 . 02 ( m , 3 H ) , 7 . 09 ( dd , J = 2 . 7 Hz , J = 8 . 8 Hz , 1 H ) , 7 . 35 ( m , 2 H ) , 7 . 44 ( s , 1 H ) , 7 . 57 ( s , 1 H ) , 8 . 41 ( d , J = 8 . 8 Hz , 1 H ) , 8 . 49 ( d , J = 5 . 3 Hz , 1 H ) , 8 . 78 ( s , 1 H ) . MS ( ES ) C 31 H 29 FN 4 O 5 이론 치 : 556 , 실측치 : 557 ( M + H ) +.