Rhamnetin-3-O-neohesperidoside, a New Flavonoid from the Leaves of Derris trifoliata

7a-O-Methyldeguelol

“…The seed pods are flat, containing 1-3 seeds. The whole plant is used as a stimulant, antispasmodic and counterirritant (Nair & Seetharaman, 1986). The bark is used as an alternative treatment for rheumatism and was originally used to paralyze fish, before being used as an insecticide (Ito et al, 2004).…”

“…The bark is used as an alternative treatment for rheumatism and was originally used to paralyze fish, before being used as an insecticide (Ito et al, 2004). Previous phytochemical studies on the leaves of D. trifoliata Lour have resulted in the isolation of flavonoid glycosides (Nair & Seetharaman, 1986) and pentacyclic triterpenoids (Ghosh et al, 1985). The title compound has been isolated from the roots of the same plant (Yenesew et al, 2005).…”

Glycosidic constituents of the leaves of an Okinawan Leguminosae plant, Derris trifoliata Lour.

“…Among its chemical constituents, rotenoids were isolated from the seeds and vine [3,4], and their cancer preventive effect was studied [4]. Hydrocarbons and wax esters [5], triterpenes, steroids [6], and a flavonoid, rhamnetin 3-Oneohesperidoside [7], are known to be constituents of the leaves. In the course of studies on the constituents of the plants grown in a subtropical climate, we investigated the glycosidic constituents of the leaves of D. trifoliata Lour.…”