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Castanopsinin C1

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]D16 + 13.5° (c 0.85, MeOH) [1]

FAB-MSm/z: 967 (M-H)

1H NMR (100 MHz, J/Hz, C5D5N): 7.12, 7.78 (s, HHDP-H) [1]

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

Table 1

C-1

48.2

Glc-1

95.7

HHDP-5

137.8

2

67.3

2

74.3

 

(2C)

3

79.1

3

79.3

COO-

168.8

4

48.5

4

71.1

 

170.7

5

56.4

5

78.9

   

6

20.0

6

62.4

   

7

30.9

HHDP-1

118.2

   

8

39.7

 

118.4

   

9

47.9

2

126.7

   

10

38.1

 

127.1

   

12

123.1

3

106.6

   

13

144.1

 

108.0

   

23

67.1

4,6

146.0

   

24

61.1

 

(2C)

   

28

176.6

 

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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