1 H NMR ( 400 MHz , CDCl 3 ) δ 7 . 40 - 7 . 27 ( m , 5 H ) , 4 . 65 - 4 . 58 ( m , 2 H ) , 4 . 36 ( ddd , J = 11 . 5 , 7 . 5 , 1 . 5 Hz , 1 H ) , 3 . 85 ( dddd , J = 11 , 5 , 4 , 3 Hz , 1 H ) , 3 . 72 ( ddd , J = 12 . 3 , 11 . 5 , 2 . 8 Hz , 1 H ) , 3 . 58 ( dd , ABX 패턴 의 절반 , J = 10 . 5 , 4 . 0 Hz , 1 H ) , 3 . 55 ( dd , ABX 패턴 의 절반 , J = 10 . 3 , 5 . 3 Hz , 1 H ) , 2 . 63 ( dddd , J = 15 , 12 , 7 . 5 , 1 Hz , 1 H ) , 2 . 56 - 2 . 47 ( m , 1 H ) , 2 . 40 - 2 . 32 ( m , 2 H ) .