화합물 92 LC / MS A : 99 % 순도 , UV = 214 nm , Rt = 1 . 52 분 , ESI 471 . 2 ( M + H ) +. 1 H NMR ( 500 MHz , 메탄올 - d 4 ) δ 7 . 57 ( d , J = 8 . 5 Hz , 2 H ) , 7 . 49 ? 7 . 43 ( m , 2 H ) , 7 . 19 ( d , J = 7 . 3 Hz , 1 H ) , 6 . 41 ( d , J = 7 . 3 Hz , 1 H ) , 4 . 40 ( s , 1 H ) , 3 . 77 ? 3 . 66 ( m , 1 H ) , 3 . 41 ? 3 . 37 ( m , 2 H ) , 3 . 21 ( t , J = 6 . 9 Hz , 2 H ) , 3 . 11 ? 3 . 01 ( m , 1 H ) , 2 . 94 ? 2 . 83 ( m , 1 H ) , 2 . 82 ? 2 . 67 ( m , 3 H ) , 2 . 56 ( t , J = 7 . 6 Hz , 2 H ) , 2 . 48 ? 2 . 38 ( m , 1 H ) , 2 . 05 ? 1 . 79 ( m , 8 H ) .