NMR data position

3

δ_C

δ_H (j in Hz) in DMSO-d₆

1

134.1

2

145.0

3

152.1

4

108.9

6.81 (d, 1.4)

5

138.1

6

119.2

6.66 (d, 1.4)

7

28.1

3.23 (d, 7.6)

8

123.2

5.18 (m)

9

131.2

10

25.5

1.67 (brs)

11

17.6

1.68 (brs)

12

62.9

4.37 (d, 5.5)

13

55.5

3.75 (s)

14

59.8

3.65 (s)

OH-12

5.09 (t, 5.5)