• Bulletin of Food Technology
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• v.22 no.4
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• pp.710-717
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• 2009

• Korean Journal of Pharmacognosy
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• v.12 no.2
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• pp.79-81
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• 1981

Two couinarins were isolated from the dried roots of Peucedanum insolens Kitagawa (Umbelliferae) and identified as isoimperatorin (I) and (+)-oxypeucedanin methanolate (II).

• Journal of the Korean Chemical Society
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• v.52 no.6
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• pp.649-656
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• 2008

• Journal of the Korean Chemical Society
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• v.46 no.5
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• pp.462-483
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• 2002

• Korean Journal of Pharmacognosy
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• v.13 no.1
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• pp.10-13
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• 1982

From the ethereal extract of the roots of Angelica koreana Max. (Umbelliferae) two furanocoumarins such as isooxypeucedanin and oxypeucedanin methanolate were newly isolated together with isoimperatorin, osthol, imperatorin, bergapten, oxypeucedanin and ${\beta}-sitosterol$.

• Journal of Korea Foresty Energy
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• v.20 no.1
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• pp.42-52
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• 2001

The barks of Fraxinus rhynchophylla, Fraxinus sieboldiana and Fraxinus mandshurica, ash trees grown in domestic, were collected, extracted with acetone-H$_2$O(7:3, v/v) and freeze dried to give some dark brown powder. A portion of the freeze dried powder was chromatographed on a Sephadex LH-20 and a TSK 40F column using a series of aqueous methanol, ethanol and ethanol-hexane mixture as eluents Some spectrometric analyses such as NMR and FAB-MS including TLC were performed to identify the structures of the isolated compounds. The bark extractives contained a large amount of coumarin derivatives in addition to a small amount of ester compounds.

• Korean Journal of Pharmacognosy
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• v.10 no.1
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• pp.1-8
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• 1979

The naturally occurring coumarins are likely to be a large and important group of plant products which are not only metabolic products of the living cells but possess varied physiological and pharmacological actions. Investigations concerning various biological activities of natural coumarins have been undertaken by many investigators in continuing effort. The authors describe on experimental results of biological activities of coumarin derivatives with particular emphasis on 10 different activities that are considered to be of importance in view of the development of new drugs from natural resources.

• Korean Journal of Pharmacognosy
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• v.14 no.1
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• pp.1-3
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• 1983

Fraxin, fraxetin-8-glucoside, mp $204-205^{\circ}$ was isolated from the fresh bark of Fraxinus sieboldiana var. angustata Nakai, which is one of the indigenous plants of the Oleaceous family in Korea.

• Korean Journal of Pharmacognosy
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• v.25 no.4 s.99
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• pp.311-318
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• 1994

From the root of Angelica decursiva-albiflora Yook, which has been used as a folk medicine for a sedative, analgesic and expectorant, four free coumarins, e.g., decursidin(I), decursin(II), umbelliferone(III) and nodakenetin(IV), and two coumarin glycosides, e.g., nodakenin(V) and decuroside I(VI) were isolate. The cytotoxicity of nodakenin(V) against L-1210 leukemia cells was less effective than cisplatin, but in the nephrotoxicity against rabbit kidney proximal tubular cell nodakenin(V) showed remarkably less nephrotoxicant than cisplatin.

• Journal of Environmental Science International
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• v.25 no.9
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• pp.1283-1288
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• 2016

In this study, we synthesized fluorescent sensors from rhodamine 6G derivatives and hydroxy coumarin. The synthetic routes to the rhodamine 6G derivatives containing hydroxy coumarin are shown in Fig. 1. Two derivatives were synthesized through Schiff base reactions. The structures of the new compounds were confirmed by melting point, $^1H$-NMR, and GC-MS analyses. The compounds were found to selectively bind to tin ($Sn^{2+}$) ion by fluorescence titration using various metal cations. Longer carbon chains gave more sensitivity. $Sn^{2+}$ ions exhibited the strongest fluorescence among the nime ions. The binding analysis using Job plots suggested that compounds form 1:1 complexes with the $Sn^{2+}$ ions.