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Licorice-Saponin B2

Reference work entry

CAS Registry Number: 118536-86-0 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Desoxo-glycyrrhetic Acid

Biological source: Glycyrrhiza uralensis [1]

C42H64O15: 808.424

Mp: 209–210°C (MeOH) [1]

[α]D23 + 54.0° (c 0.3, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 3000–2800 (br), 1720, 1050 [1]

1H NMR (500 MHz, J/Hz, C5D5N-D2O): 0.83, 0.89, 0.92, 1.20, 1.28, 1.36, 1.39 (s, CH3 × 7), 3.33 (dd, J = 4.6, 11.9, H-3), 5.49 (brs, H-12)

β-D-GlcUAp: 5.03 (d, J = 7.7, H-1)

β-D-GlcUAp′: 5.39 (d, J = 7.6, H-1) [1]

13 C NMR (22.5 MHz, C 5D 5N ): [ 1]

Table 1

C-3

88.7

GlcUA-1

104.1

12

122.0

6

171.1

13

144.3

GlcUA′-1

105.7

18

48.8

6

172.6

30

178.3

   

References

  1. 1.
    I. Kitagawa, K. Hori, T. Taniyama, J.-L. Zhou, M. Yoshikawa, Chem. Pharm. Bull. 41(1), 43 (1993)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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