Table 2 ¹ H et ¹³ C NMR data for the saponin 3-GlcA-28-AraRhaxyl-medicagenate ^a obtained in CD ₃ OD at 298K and 500 MHz

1

44.4

2.11 dd (14.6, 2.3); 1.25^b

2

70.6

4.29 m

3

86.1

4.08 d (3.5)

4

53.0

5

52.8

1.59^b

6

21.0

1.64^b, 1.16^b

7

33.0

1.76^b, 1.54^b

8

40.8

9

49.0

1.60^b

10

37.1

11

24.3

2.01^b, 1.94^b

12

123.5

5.32 t (3.2)

13

144.6

14

42.8

15

28.4

1.67^b, 1.11^b

16

23.4

2.04^b, 1.67^b

17

47.5

18

42.1

2.93 dd (13.5, 4.3)

19

46.8

1.15^b, 1.12^b

20

31.4

21

34.3

1.39^b, 1.22^b

22

33.2

1.34^b, 1.31^b

23

181.4

24

13.1

1.40 s

25

16.9

1.24 s

26

17.4

0.81 s

27

25.9

1.16 s

28

177.5

29

33.1

0.91 s

30

23.6

0.95 s

GlcA

1

104.9

4.40 d (7.7)

2

74.5

3,27^b

3

77,9

3.30 t (9.1)

4

73.0

3.48 t (9.1)

5

76.8

3.36 d (9.1)

6

173.2

Ara

1

93.6

5.69 d (3.5)

2

75.3

3.80 t (4.5)

3

70.5

3.90 m

4

66.7

3.84 m

5

62.9

3.91 m, 3.49 m

Rha

1

101.2

5.03 s

2

71.8

3.86^b

3

70.8

3.47^b

4

83.1

3.55 m

5

68.5

3.72 m

6

17.3

1.28 d (6.2)

Xyl

1

106.5

4.49 d (7.7)

2

75.5

3.19 dd (9.1, 5.2)

3

76.8

3.37 t ((9.1)

4

70.7

3.56 m

5

67.1

3.84^b, 3.18 dd (11.5, 9.4)