Tables 1 ¹H and ¹³C NMR shifts for compounds 1, 2, and 3

1

1.22

23.4

1.23

22.1

1.33

23.6

2

4.06

66.2

4.01

65.3

4.15

67.9

3

2.52/2.59

43.7

2.55

42.3

2.95/3.01

41.5

4

–

162.9

–

161.3

–

154.7

5

6.34

109.9

6.34

108.5

7.08

122.4

6

–

148.2

–

147.3

–

n/a

7

5.41

105.7

5.38

104

6.86

99.1

8

–

194.1

–

193.3

–

196

9

–

84.3

–

82.7

–

86.5

9-CH3

1.55

23.5

1.55

21.5

1.69

30.1

10

4.03

44.6

3.63

42.1

–

n/a

11

–

116.4

–

114.8

–

119.9

12

7.53

149.8

7.42

150

8.35

144.4

13

0.86

12.3

0.87

10.9

0.87

12

14

1.30/1.42

31.2

1.29/1.42

30.1

1.31/1.43

31

15

2.48

36.1

2.45

34.3

2.48

35.6

15-CH3

0.99

20.6

0.99

19.6

0.99

20.5

16

5.60

147.4

5.32

139.7

5.51

144.9

17

–

134.4

–

138.1

–

134.2

17-CH3

1.82

12.6

1.78

11.4

1.85

12.4

18

6.77

150.4

6.3

138.1

6.68

146.9

19

6.40

125.7

6.15

125

6.45

126.4

20

7.41

148.4

6.4

131.1

7.36

142.4

21

6.46

128.2

5.65

132.4

7.55

127.9

22

–

192.4

4.83

68.1

–

185.8

23

4.41

55.7

3.01

48.7

–

n/a

24

–

171.3

–

174.4

–

173.6

1′

4.32/4.51

57.7

2′

3.89

61.3