11’

18.0

1.17 (d, 5.8)

18.0

1.18 (d, J = 6.6)

17.1

1.17 (d, 6.3)

12’

170.3

170.2

170.3

13’

53.3

3.72 (s)

53.3

3.74 (s)

53.8

3.72 (s)

OH-1’

11.73 (s)

11.74 (s)

11.71 (s) or 11.88 (s)

OH-5’

OH-8’

13.76 (s)

13.73 (s)