1 H NMR ( 400 MHz , 클로로포름 - d ) δ = 9 . 09 ( s , 1 H ) , 8 . 78 ( s , 1 H ) , 8 . 28 ( s , 1 H ) , 8 . 02 ( d , J = 7 . 4 Hz , 2 H ) , 7 . 63 - 7 . 59 ( m , 1 H ) , 7 . 55 - 7 . 50 ( m , 2 H ) , 7 . 37 ( d , J = 7 . 1 Hz , 2 H ) , 7 . 29 - 7 . 17 ( m , 7 H ) , 6 . 79 ( d , J = 7 . 9 Hz , 4 H ) , 6 . 29 ( dd , J = 2 . 9 , 16 . 2 Hz , 1 H ) , 5 . 60 ( ddd , J = 2 . 7 , 3 . 9 , 53 . 1 Hz , 1 H ) , 4 . 78 ( ddd , J = 4 . 7 , 6 . 4 , 15 . 8 Hz , 1 H ) , 4 . 26 - 4 . 22 ( m , 1 H ) , 3 . 77 ( s , 6 H ) , 3 . 58 ( dd , J = 3 . 1 , 10 . 9 Hz , 1 H ) , 3 . 26 ( dd , J = 3 . 7 , 10 . 7 Hz , 1 H ) , 0 . 85 ( s , 9 H ) , 0 . 10 ( s , 3 H ) , 0 . 02 ( s , 3 H )