Table 2 ¹³C NMR (100 Hz) data of compounds 1–4 in CDCl₃ (δ in ppm).

1

34. 6, C

32.9, C

138.2, C

53.2, CH

2

28.4, CH₂

38.7, CH₂

85.5, CH

22.0, CH₂

3

33.5, CH₂

44.3, CH

40.1, CH₂

37.5, CH₂

4

89.8, C

90.6, C

45.1, C

84.6, C

5

33.4, CH

40.8, CH

47.3, CH

33.2, CH

6

23.4, CH

27.0, CH

32.9, CH

33.5, CH₂

7

44.3, CH

44.6, CH

25.1, CH

35.0, CH₂

8

27.1, CH₂

26.8, CH₂

21.4, CH₂

152.0, C

9

31.6, CH₂

31.3, CH₂

36.6, CH₂

41.5, CH

10

30.5, CH

29.5, CH

136.0, C

36.4, CH₂

11

33.6, CH

33.6, CH

18.8, C

33.7, C

12

19.6, CH₃

19.9, CH₃

28.2, CH₃

22.1, CH₃

13

20.2, CH₃

20.0, CH₃

15.9, CH₃

30.2, CH₃

14

19.0, CH₃

18.8, CH₃

22.1, CH₃

20.4, CH₃

15

42.2, CH₂

23.8, CH₃

22.9, CH₃

110.3, CH₂

1′

35.1, CH

35.2, CH

53.7, CH

200.3, C

2′

103.5, C

99.9, C

113.8, C

103.7, C

3′

165.8, C

163.4, C

167.4, C

162.2, C

4′

104.2, C

103.8, C

107.6, C

100.9, C

5′

168.5, C

168.7, C

167.8, C

167.3, C

6′

104.2, C

103.7, C

105.2, C

104.2, C

7′

169.8, C

169.7, C

170.0, C

168.9, C

8′

144.6, C

142.3, C

140.7, C

142.5, C

9′/13′

126.7, CH

127.3, CH

130.5, CH

127.7, CH

10′/12′

128.6, CH

128.5, CH

127.7, CH

126.7, CH

11′

126.3, CH

126.5, CH

126.4, CH

130.2, CH

14′

192.2, CH

192.1, CH

193.6, CH

24.3, CH₂

15′

191.6, CH

191.4, CH

191.9, CH

192.1, CH