화합물 180 LC / MS ESI 497 ( M + H ) +. 1 H NMR ( 500 MHz , MeOD ) 1 H NMR ( 500 MHz , MeOD ) δ 7 . 49 ( d , J = 8 . 4 Hz , 1 H ) , 7 . 13 ( d , J = 7 . 3 Hz , 1 H ) , 6 . 65 ? 6 . 51 ( m , 2 H ) , 6 . 38 ( t , J = 6 . 3 Hz , 1 H ) , 4 . 71 ( s , 1 H ) , 3 . 87 ( s , 3 H ) , 3 . 82 ( d , J = 6 . 3 Hz , 3 H ) , 3 . 40 ? 3 . 36 ( m , 2 H ) , 3 . 19 ( t , J = 7 . 0 Hz , 2 H ) , 3 . 13 ( s , 1 H ) , 2 . 71 ( dd , J = 18 . 0 , 11 . 8 Hz , 3 H ) , 2 . 57 ? 2 . 49 ( m , 2 H ) , 2 . 35 ( s , 1 H ) , 2 . 00 ( dd , J = 22 . 2 , 11 . 0 Hz , 1 H ) , 1 . 98 ? 1 . 73 ( m , 8 H ) .