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Assamsaponin F

Reference work entry

CAS Registry Number: 316157-15-0 Open image in new window

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

Biological source: Camellia sinensis [1]

C62H94O29: 1302.588

Mp: 209.8–210.3°C [1]

[α]D26 + 8.8° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1721, 1649, 1078 [1]

FAB-MS (negative ion mode) m/z: 1301 (M-H), 1139 (M-C6H11O5), 1007 (M-C11H19O9) [1]

FAB-MS (positive ion mode) m/z: 1325 (M + Na)+ [1]

1H NMR ( 500 MHz, J/Hz, C5D5N): 0.74, 0.78, 1.07, 1.26, 1.43, 1.45, 1.98, 2.03, 2.51 (s, CH3-26, 25, 30, 29, 27, 24, Ang-5, Ac-2, Ac-2′), 2.05 (d, J = 7.6, CH3-4 of Ang), 2.98 (dd-like, H-18), 3.45, 3.57 (d, J = 13.4, H2-28), 3.99 (dd, J = 2.8, 9.8, H-3), 5.39 (brs, H-12), 5.58 (brs, H-16), 5.85 (d, J = 10.3, H-21), 5.98 (dq-like, H-3 of Ang), 6.09 (d, J = 10.3, H-22), 9.94 (s, H-23)

β-D-GlcUAp: 4.82 (d, J = 7.3, H-1); β-D-Galp: 5.61 (d, J = 7.7, H-1)

β-D-Glcp: 5.10 (d, J = 7.4, H-1); α-L-Arap:...

References

  1. 1.
    T. Murakami, J. Nakamura, T. Kageura, H. Matsuda, M. Yoshikawa, Chem. Pharm. Bull. 48(11), 1720 (2000)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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