A new acylated flavone C-glycoside, dregeanin (1) was isolated from the flowers of Dregea volubilis, together with vicenin-2, vitexin, isovitexin, isoorientin, rutin, quercetin, luteolin and apigenin. The structure of 1 was established by spectroscopic analysis as apigenin-{6-C-β-D-glucosyl 2″-O-feruloyl}8-C-β-D-glucopyranoside.
ChadhaYR. (1976) The Wealth of India, Raw Materials. Council of Scientific & Industrial Research, New Delhi, Vol. 6, p 564–565.
2.
YoshimuraS, NaritaH, HyashiK, MitsuhashiH. (1983) Studies on the constituents of Asclepiadaceae plants LVI. Isolation of new antitumor-active glycosides from Dregea volubilis (L). Benth. Chemical and Pharmaceutical Bulletin, 31, 3971–3983.
3.
SahuNP, PandaN, MondalNB, BanerjeeS, KoikeK, NikaidoT. (2002) Polyhydroxy pregnane glycosides from the flowers of Dregea volubilis. Phytochemistry, 61, 383–388.
MiddletonE(Jr.), KandaswamyC, TheoharidesTC. (2000) The effects of plant flavonoids on mammalian cells: implications for inflammations, heart disease and cancer. Pharmacological Reviews, 52, 673–751.
6.
MiddletonE(Jr.). (1996) Biological properties of plant flavonoids: An overview. International Journal of Pharmacognosy, 34, 344–348.
7.
Lamuela-RaventosRM, CovasM-I, FitoM, MarrugatJ, Torre-BoronatMC de la. (1999) Detection of dietary antioxidant phenolic compounds in human LDL. Clinical Chemistry, 45, 1870–1872.
8.
AgrawalPK, BansalMC. (1989) Carbon-13 NMR of Flavonoids. In Studies in Organic Chemistry. AgrawalPK (Ed.). Elsevier Science Publishing Co. Inc, Amsterdam. p. 281–364.
9.
XieC, VeitchNC, HoughtonPJ, SimmondsMSJ. (2003) Flavone C-glycosides from Viola yedoensis Makino. Chemical Pharaceutical Bulletin, 51, 1204–1207.
10.
MabryTJ, MarkhamKR, ChariVM. (1982) “C-13 NMR spectra of flavonoids.” In Flavonoids, Advances in Research. HarborneJB, MabryTJ, (Eds.). Chapman and Hall, London, UK, 51–134
11.
MabryTJ, MarkhamKR, ThomasMB. (1970) The Systematic Identification of Flavonoids. Springer-Verlag, Berlin.
12.
ZouJH, YangJS, DongYS, ZhouL, LinG. (2005) Flavone C-glycosides from flowers of Trollius ledebouri. Phytochemistry, 66, 1121–1125.
