Phytochemical investigation of the stem bark of Pometia pinnata resulted in the isolation of a new triterpenoidal saponin. The structure of the new compound, pometin (1), was established as 3-O-[β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl]-oleanolic acid based on 1D and 2D-NMR analysis including COSY, 2D J-resolved, HMQC, HMBC correlations and chemical transformations.
JayasingheULB, WannigamaGP, FujimotoY. (2000) Chemistry and bioactivity of saponins from some Sri Lankan plants. In: OleszekW, MarstonA. (Eds.) Saponins in Food Feedstuffs and Medicinal Plants, Vol. 45, Kluwer Academic, The Netherlands, pp. 113–119.
WhistlarWA. (1991) Herbal Medicine in the Kingdom of Tonga, Journal of Ethnopharmacology, 31, 339–372.
5.
SinghYN, IkahihifoT, PanuveM, SlatterC. (1984) Folk medicine in Tonga. A study on the use of herbal medicines for obstetric and gynaecological conditions and disorders, Journal of Ethnopharmacology, 12, 305–329.
AhmadVU, NoorwalaM, MohammadF.V (1993) A new triterpene glycoside from the roots of Symphytum officinale, Journal of Natural Products, 56, 329–334.
9.
ToriK, SeoS, ShimaokaA, TomitaY. (1974) Carbon-13 NMR spectra of olean-12-enes. Full signal assignments including quaternary carbon signals assigned by use of indirect 13C-1H spin couplings, Tetrahedron Letters, 48, 4227–4230.
10.
ToriK, SeoS, TomitaY. (1975) Assignment of Lanthanide-induced 1H-NMR signals of the C-29 and C-30 methyl groups of methyl ursolate and oleanolate, Chemistry and Industry (London), 10, 434–436.
11.
GorinPAJ, MazurekM. (1975) Further studies on the assignment of signals in 13C magnetic resonance spectra of aldoses and derived methyl glycosides, Canadian Journal of Chemistry, 53, 1212–1223.
12.
LanzettaR, LaonigroG, ParrilliM, BreitmaierE. (1984) Glycosides from Muscari comosum. 6′. Use of homo- and heteronuclear two-dimensional nuclear magnetic resonance spectroscopy for the structure determination of the novel glycoside muscaroside C, Canadian Journal of Chemistry, 62, 2874–2878.
13.
BaderG, WrayV, HillerK. (1995) The main saponins from the aerial parts and the roots of Solidago virgaurea subsp. virgaurea, Planta Medica, 61, 158–161.
14.
ReznicekG, JurenitschJ, FreilerM, KorhammerS, HaslingerE, HillerK, KubelkaW. (1992) Isolation and structure elucidation of further new saponins from Solidago canadensis, Planta Medica, 58, 94–98.
15.
SeoS, TomitaY, ToriK, YoshimuraY. (1978) Determination of the absolute configuration of a secondary hydroxyl group in a chiral secondary alcohol using glycosidation shifts in carbon-13 Nuclear magnetic resonance spectroscopy, Journal of the American Chemical Society, 100, 3331–3339.
16.
Atta-ur-Rahman (1989) One and Two-Dimensional NMR Spectroscopy, Elsevier Science Publisher, Amsterdam.
MiyaseT, SaitohH, ShiokawaK-I, UenoA. (1995) Six new presenegenin glycosides, Reiniosides A-F, from Polygala reinii root, Chemical and Pharmaceutical Bulletin, 43, 466–472.
19.
DavisDG, BaxAC (1985) Assignment of complex 1H-NMR spectra via Two-dimensional Homonuclear Hatemann-Hahn spectroscopy. Journal of the American Chemical Society, 107, 2820–2821.
20.
BuckinghamJ. (1985) Dictionary of Organic Compounds, 5th edition, 3rdSupplement Chapman and Hall, New York, p. 332.
