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Eupteleasaponin V

Reference work entry

CAS Registry Number: 290809-34-6 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Eupteleogenin

Biological source: Euptelea polyandra [1]

C46H70O17: 894.461

Mp: 175–177°C [1]

[α]D27 + 15.5° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1781, 1655, 1075 [1]

FAB-MS (negative ion mode) m/z: 893 (M-H) [1]

FAB-MS (positive ion mode) m/z: 917 (M + Na)+, 939 (M + 2Na-H)+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.92, 1.19, 1.20 (s, CH3-25, 27, 23), 1.10 (s, CH3-24, 26), 2.35 (dd, J = 3.1, 13.4, H-18), 3.05 (brs, H-11), 3.15 (d, J = 3.9, H-12), 3.30 (dd, J = 4.0, 11.9, H-3), 4.70, 4.73 (s, H2-29)

β-D-Xylp: 4.87 (d, J = 4.7, H-1)

β-D-Glcp: 5.08 (d, J = 7.9, H-1)

α-L-Rhap: 6.09 (brs, H-1), 1.64 (d, J = 6.1, CH3-6)

α-L-Arap: 5.21 (d, J = 7.1, H-1) [1]

13 C NMR (125 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.8

C-16

32.3

Xyl-1

104.7

Rha-1

102.0

2

26.2

17

44.1

2

74.9

2

72.4

3

88.0

18

54.8

3

82.0

3

72.6

4

39.7

19

34.7

References

  1. 1.
    M. Yoshikawa, T. Murakami, H. Oominami, H. Matsuda, Chem. Pharm. Bull. 48(7), 1045 (2000)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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