Castanopsinin H1

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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]

C64H72O27: 1272.426

[α]D20 + 30.0° (c 0.60, MeOH) [1]

FAB-MSm/z: 1359 (M-H) [1]

1H NMR (100 MHz, J/Hz, C5D5N): 7.08, 7.53 (s, HHDP-H), 7.86, 8.02 (s, 2 x galloyl-H) [1]

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

Table 1

C-1

47.6

Glc-1

95.4

HHDP-5

137.7

2

66.5

2

72.2

 

137.9

3

79.0

3

80.1

Galloyl-1

121.3

4

48.6

4

68.9

 

121.6

5

57.3

5

79.0

2,6

110.5

6

20.0

6

62.5

 

111.9

7

30.8

HHDP-1

116.7

3,5

147.1

8

39.4

 

(2C)

 

147.4

9

47.6

2

126.7

4

140.7

10

38.1

 

127.4

 

141.5

12

123.0

3

107.6

COO-

167.2

13

144.0

 

108.6

 

169.0

23

71.1

4,6

145.9

   

24

61.7

 

(2C)

   

28

176.3

 

146.5

   
     

146.8

   

References

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

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