Structure determination of a kaempferol 3-rhamnosyldiglucoside from Impatiens balsamina

Flavonoids from the flowers of Impatiens glandulifera Royle isolated by high performance countercurrent chromatography

“…) was made by 1D/2D‐NMR (Tables and ). The chemical shifts presented here were in good accordance with the literature (Fukumoto et al ., ; Kazuma et al ., ; Zhang et al ., ). The data available for dihydromyricetin, however, were only reported in deuterated dimethyl sulphoxide (DMSO‐d 6 ).…”

“…Further sugar signals were unambiguously attributed based on a HSCQ‐TOCSY experiment observing the correlation signals from the anomeric protons in the respective spin system. Glucosidic linkage were identified on the basis of HMBC H‐C cross peaks (1ʺ → 3, 1ʺʹ → 2ʺ and 1ʺʺ → 3ʺ) and were identical to the published data of kaempferol‐3‐ O‐ [2ʺ‐O‐α‐rhamno‐3ʺ‐O‐β‐glucosyl]‐glucoside isolated from flowers of Impatiens balsamina (Fukumoto et al ., ). The NMR spectral data confirmed the identifications based on the results from ESI‐MS analysis.…”

A phyto-pharmacological overview on Jewel Weed

“…Kampherol and myricetin is found in petals and sepals while quercetin is found in sepals only (Clevenger S, 1958). Kaempferol 3-rhamnosyldiglucoside was isolated from white petals of plant and based on spectroscopic techniques its structure was determined to be kaempferol- (Fukumoto et al, 1994).…”

Effects on Blood Pressure Decrease in Response to PAF of Impatiens textori MIQ.

“…2) apigenin 7-glucoside (2), 3) luteolin (3), 2) chrysoeriol (4), 2) quercetin (5), 4) quercetin 3-glucoside (6), kaempferol (7), 4) kaempferol 3-glucoside (8) and kaempferol 3-rhamnosyldiglucoside (9) 9) were identified by direct comparison of spectral data (MS, UV, IR, 1 H-and 13 C-NMR). 10,11) These compounds were isolated from the flowers of I. textori for the first time.…”