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] 18D + 10.5° (c 0.99, MeOH) [1]
FAB-MS m/z: 967 (M-H)− [1]
1 H NMR (100 MHz, J/Hz, C5D5N): 7.12, 7.78 (s, HHDP-H) [1]
13 C NMR (25 MHz, C5D5N): [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 |
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References
M. Ageta, G.-I. Nonaka, I. Nishioka, Chem. Pharm. Bull. 36(5), 1646 (1988)
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(2013). Castanopsinin C2 . In: Azimova, S.S. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0541-2_1108
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