화합물 81 LC / MS A : 100 % 순도 , UV = 214 nm , Rt = 1 . 46 분 , ESI 508 . 4 ( M + H ) +. 1 H NMR ( 500 MHz , MeOD ) δ 8 . 40 ( s , 1 H ) , 7 . 69 ( s , 1 H ) , 7 . 55 ( s , 1 H ) , 7 . 42 ( s , 2 H ) , 7 . 29 ( s , 1 H ) , 6 . 54 ( d , J = 7 . 2 Hz , 1 H ) , 3 . 66 ( s , 1 H ) , 3 . 49 - 3 . 40 ( m , 2 H ) , 3 . 26 ( m , 4 H ) , 2 . 96 - 2 . 25 ( m , 9 H ) , 2 . 15 - 1 . 69 ( m , 8 H ) , 1 . 29 ( t , J = 7 . 6 Hz , 3 H ) .