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Castanopsinin D1

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 2α,3β,23,24-Tetrahydroxy-olean-12-en-28-oic Acid

Biological source: Castanopsis cuspidata [1]

C50H64O19: 968.404

[α]D20 + 52.8° (c 0.48, MeOH) [1]

FAB-MSm/z: 967 (M-H) [1]

1H NMR (100 MHz, J/Hz, C5D5N): 7.18, 7.28 (s, HHDP-H) [1]

13 C NMR (25 MHz, C 5D 5N): [ 1]

Table 1

C-1

47.6

Glc-1

95.7

HHDP-5

137.7

2

67.7

2

74.2

 

(2C)

3

84.8

3

78.9

COO-

169.4

4

48.6

4

71.1

 

169.6

5

57.6

5

79.1

   

6

20.0

6

62.3

   

7

33.0

HHDP-1

116.8

   

8

39.2

 

(2C)

   

9

48.0

2

127.5

   

10

38.6

 

(2C)

   

12

122.8

3

107.5

   

13

144.9

 

108.2

   

23

71.6

4,6

146.4

   

24

63.6

 

(2C)

   

28

176.4

 

146.5

   
     

146.7

   

References

  1. 1.
    M. Ageta, G.-I. Nonaka, I. Nishioka, Chem. Pharm. Bull. 36(5), 1646 (1988)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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