Compound 12 from Fagonia glutinosa

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 27-Hydroxy-oleanolic Acid

Biological source: Fagonia glutinosa [1]

C₅₃H₈₆O₂₃: 1090.555

[α] ²³_D + 21.8° (c 1.50, MeOH) [1]

FAB-MS m/z: 1113[C₅₃H₈₆O₂₃ + Na]⁺, 1081, 951, 531, 487, 399 [1]

¹ H NMR (400 MHz, J/Hz, C₅D₅N): 0.94 (dt, J = 12.0, 2.4, Hα-1), 1.45 (brd, J = 12.0, Hβ-1), 1.97 (Hα-2), 1.78 (Hβ-2), 3.11 (dd, J = 12.7, 4.7, H-3), 0.85 (H-5), 1.50 (brd, J = 12.5, Hα-6), 1.32 (Hβ-6), 1.84 (Hα-7), 1.41 (brd, J = 12.0, Hβ-7), 2.17 (brd, J = 12.0, 8.6, H-9), 1.93 (H-11), 5.79 (t, J = 3.0, H-12), 1.45 (brd, J = 12.0, Hα-15), 2.33 (dt, J = 13.3, 4.0, Hβ-15), 2.11 (dt, J = 13.3, 2.7, Hα-16), 1.97 (brd, J = 12.0, Hβ-16), 3.28 (dd, J = 14.7, 4.0, H-18), 1.73 (brt, J = 13.3, Hα-19), 1.32 (brd, J = 13.3, Hβ-19), 1.29 (dt, J = 12.0, 4.0, Hα-21), 1.07 (Hβ-21), 1.73 (brd, J = 13.3, Hα-22), 1.86 (Hβ-22), 1.20 (s, CH₃-23), 1.07 (s, CH₃-24), 0.85 (s, CH₃-25), 1.10 (s, CH₃-26)...