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Eupteleasaponin V Acetate

Reference work entry

CAS Registry Number: 290304-30-2 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]

C48H72O18: 936.463

Mp: 180–182°C [1]

[α]D26 + 41.5° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1775, 1744, 1649, 1074 [1]

FAB-MS (negative ion mode) m/z: 935 (M-H), 893 (M-C2H3O), 789 (M-C6H11O4), 747 (M-C8H13O5) [1]

FAB-MS (positive ion mode) m/z: 937 (M + H)+, 959 (M + Na)+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.93 (s, CH3-25), 1.09, 1.20 (s, CH3-24, 26, 23, 27), 2.07 (Ac-2), 2.35 (dd-like, H-18), 3.06 (brs, H-11), 3.15 (d, J = 3.6, H-12), 3.30 (dd, J = 4.0, 11.2, H-3), 4.70, 4.73 (s, H2-29)

β-D-Xylp: 4.85 (d, J = 6.9, H-1)

β-D-Glcp: 5.01 (d, J = 7.9, H-1)

α-L-Rhap: 6.06 (brs, H-1), 1.62 (d, J = 6.3, CH3-6) [1]

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

Table 1

C-1

38.7

C-17

44.1

Xyl-1

104.8

Rha-1

102.0

2

26.2

18

54.8

2

74.9

2

72.4

3

88.1

19

34.7

3

82.3

3

72.6...

References

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

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