Advertisement

Castanopsinin C2

Reference work entry

Open image in new window

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

Biological source: Castanopsis cuspidata [1]

C50H64O19: 968.404

[α]D18 + 10.5° (c 0.99, MeOH) [1]

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

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

48.6

Glc-1

95.8

HHDP-5

137.8

2

67.3

2

74.0

 

(2C)

3

79.1

3

79.3

COO-

168.8

4

48.4

4

71.4

 

168.8

5

56.4

5

78.9

   

6

19.9

6

62.4

   

7

33.6

HHDP-1

118.1

   

8

40.1

 

118.6

   

9

48.5

2

127.1

   

10

38.2

 

127.3

   

12

125.6

3

106.6

   

13

139.0

 

108.0

   

23

67.1

4,6

145.9

   

24

61.1

 

(2C)

   

28

176.5

 

146.4

   
     

146.7

   

References

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

Copyright information

© Springer Science+Business Media New York 2013

Personalised recommendations