화합물 91 LC / MS A : 100 % 순도 , UV = 214 nm , Rt = 1 . 68 분 , ESI 471 . 3 ( M + H ) +. 1 H NMR ( 500 MHz , 메탄올 - d 4 ) δ 7 . 67 ( s , 1 H ) , 7 . 53 ? 7 . 49 ( m , 1 H ) , 7 . 47 ? 7 . 40 ( m , 2 H ) , 7 . 22 ( d , J = 7 . 3 Hz , 1 H ) , 6 . 42 ( d , J = 7 . 3 Hz , 1 H ) , 4 . 36 ( d , J = 3 . 6 Hz , 1 H ) , 3 . 75 ? 3 . 67 ( m , 1 H ) , 3 . 42 ? 3 . 38 ( m , 2 H ) , 3 . 21 ( t , J = 6 . 9 Hz , 2 H ) , 3 . 09 ? 3 . 00 ( m , 1 H ) , 2 . 89 ? 2 . 80 ( m , 1 H ) , 2 . 72 ( t , J = 6 . 3 Hz , 3 H ) , 2 . 57 ( t , J = 7 . 7 Hz , 2 H ) , 2 . 47 ? 2 . 37 ( m , 1 H ) , 2 . 07 ? 1 . 80 ( m , 8 H ) .