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Glycoside L-K2

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Ursolic Acid

Biological source: Scheffleropsis angkae [1]

C59H96O26: 1220.618

1H NMR (500 MHz, J/Hz, C5D5N): 5.30 (H-12)

α-L-Arap: 4.62 (d, J = 6, H-1)

β-D-Glcp: 5.22 (d, J = 7.5, H-1)

β-D-Glcp′: 6.30 (d, J = 8, H-1)

β-D-Glcp″: 4.81 (d, J = 8, H-1)

α-L-Rhap: 5.69 (s, H-1), 1.54 (d, J = 5.5, CH3-6) [1]

13 C NMR (125 MHz, C 5D 5N): [ 1]

Table 1

C-1

39.1

C-16

24.6

Ara-1

107.0

Glc″-1

104.7

2

26.6

17

48.4

2

71.5

2

75.1

3

88.7

18

53.2

3

83.9

3

76.4

4

39.5

19

39.1

4

69.0

4

78.5

5

55.9

20

39.1

5

66.6

5

77.0

6

18.5

21

30.8

Glc-1

105.8

6

61.4

7

33.5

22

36.8

2

75.5

Rha-1

102.6

8

40.1

23

28.2

3

78.1

2

72.4

9

48.1

24

16.9

4

71.7

3

72.6

10

36.9

25

15.7

5

78.4

4

73.8

11

23.7

26

17.6

6

62.6

5

70.2

12

126.1

27

23.7

Glc′-1

95.5

6

18.3

13

138.4

28

176.3

2

73.7

   

14

42.5

29

17.3

3

78.5

   

15

28.7

30

21.2

4

71.0

   
       

5

77.7

   
       

6

69.4

   

References

  1. 1.
    A.S. Stolyarenko, V.I. Grishkovets, A.S. Shashkov, V.Ya. Chirva, Chem. Nat. Comp. 36(3), 295 (2000)CrossRefGoogle Scholar

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