화합물 78 LC / MS A : 100 % 순도 , UV = 214 nm , Rt = 1 . 46 분 , ESI 417 ( M + H ) +. 1 H NMR ( 500 MHz , MeOD ) δ 7 . 15 ( d , J = 7 . 3 Hz , 1 H ) , 6 . 35 ( d , J = 7 . 3 Hz , 1 H ) , 4 . 83 ( s , 1 H ) , 4 . 50 ( brs , 1 H ) , 3 . 53 ( brs , 1 H ) , 3 . 47 ? 3 . 34 ( m , 2 H ) , 3 . 22 ( m , 3 H ) , 3 . 01 ( s , 1 H ) , 2 . 71 ( t , J = 6 . 1 Hz , 2 H ) , 2 . 60 ( brs , 1 H ) , 2 . 46 ( d , J = 7 . 1 Hz , 2 H ) , 2 . 33 ( brs , 1 H ) , 1 . 98 ( d , J = 14 . 6 Hz , 2 H ) , 1 . 91 ? 1 . 82 ( m , 2 H ) , 1 . 69 ( d , J = 11 . 9 Hz , 21 H ) , 1 . 21 ( brs , 2 H ) .