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Licorice-Saponin C2

Reference work entry

CAS Registry Number: 118525-49-8 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Olean-11,13(18)-dien-30-oic Acid

Biological source: Glycyrrhiza uralensis [1]

C42H62O15: 806.408

Mp: 249–251°C (MeOH) [1]

[α]D23 −120.0° (c 0.2, MeOH) [1]

UV λmaxMeOH nm (ε): 241 (14100), 249 (15800), 259 (10200) [1]

IR (KBr) νmax cm−1: 3400, 3000–2850 (br), 1710, 1640, 1020 [1]

1H NMR (500 MHz, J/Hz, C5D5N + D2O): 0.80, 0.88, 0.92, 1.05, 1.25, 1.31, 1.38 (s, CH3 × 7), 5.92 (brd, J = 11.0, H-3), 6.36 (brd, H-12)

β-D-GlcUAp: 5.00 (d, J = 7.3, H-1)

β-D-GlcUAp′: 5.37 (d, J = 7.4, H-1) [1]

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

Table 1

C-3

89.2

GlcUA-1

103.7

11

125.8

6

171.1

12

127.2

GlcUA′-1

105.8

13

135.2

6

171.4

18

135.9

   

22

39.6

   

30

179.3

   

References

  1. 1.
    K. Kitagawa, T.T. Hori, 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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