• Archives of Pharmacal Research
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• v.27 no.3
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• pp.287-290
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• 2004

Five known lignans, (+)-pinoresinol (1), (+)-8-hydroxypinoresinol (2), (-)- dehydrodiconiferyl alcohol (3), (+)-trans-dehydrodiconiferyl alcohol (4), and (-)-olivil (5), were isolated from the roots of Rosa multiflora for the first time. Their structures were determined using spectroscopic data.

• Korean Journal of Pharmacognosy
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• v.21 no.1
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• pp.49-51
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• 1990

From tire root bark of Accnthopanax koreanum a new diterpene glycoside, mp $212{\sim}214^{\circ}$, was isolated. The structure was established as 15(R),16-dihydroxypimar-9(11)-ene-19-oic acid ${\beta}$-D-glucopyranosyl ester (sumogaside) oil the basis of spectroscopic methods and chemical transformation.

• Natural Product Sciences
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• v.12 no.2
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• pp.101-103
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• 2006

In the course of the continual work on the fresh tubers of Gastrodia elata, a fructoside constituent was isolated from the n-butanol soluble fraction prepared from the methanol extract. The structure of this compound was identified as $n-butyl-{\beta}-D-fructopyranoside$ from various spectroscopic data including $^1H-\;and\;^{13}C-NMR$, HMQC, HMBC, and FABMS.

• Korean Journal of Pharmacognosy
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• v.48 no.4
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• pp.268-272
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• 2017

Three tricyclic pyridone alkaloids, (-)-4,6'-anhydrooxysporidinone (1), (-)-6-deoxyoxysporidinoCne (2), and (-)-sambutoxin (3) were isolated from cultures of Fusarium lateritium SSF2 derived from the fruits of Cornus officinalis. Chemical structures of the isolated compounds were determined by spectroscopic method and comparisons with reported data values. The compounds 1-3 were isolated for the first time from this fungal strain.

• Archives of Pharmacal Research
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• v.10 no.4
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• pp.258-259
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• 1987

An alkaloid was isolated form water-soluble fraction of Panax ginseng roots. It was characterized by spectroscopic data and dynthesis as 4, 5, 6, 7-tetrahydroimidazo (4, 5-c) pyridine-6-carboxylic acid or spinacine, which was first isolated from the plant kingdom.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.1
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• pp.76.3-77
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• 2016

In the course of the homogeneous spectroscopic study of globular clusters in our Galaxy, we revisit the strategy of measuring equivalent widths (EWs) for the large set of data in a consistent manner. In our presentation, we show comparisons of the EW measurements from various approaches and environments for over two thousand lines in Arcturus and discuss the implication in our future study.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.1
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• pp.78.2-78.2
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• 2016

There are many telluric absorption lines which are laid on the science spectrum in ground based spectroscopic observations. In especial, the IR region spectra are considerably contaminated by telluric lines. Therefore, many scientists have a difficulty in removing the telluric effect. We thus tried removing telluric lines with IGRINS data by two methods. One is using the standard stellar spectrum as telluric lines. The other adopt calculated synthetic telluric spectrum. Here we present the results of test for precise removing telluric lines on IGRINS spectra.

• Natural Product Sciences
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• v.14 no.4
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• pp.265-268
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• 2008

Phytochemical investigations on the aerial parts of Asplenium scolopendrium led to the isolation of four terpenoids, the structures of which were assigned as lutein (1), (6S,9S)-roseoside (2), icariside $B_2$ (3), and picrionoside A (4) using spectroscopic data.

• Natural Product Sciences
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• v.4 no.3
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• pp.148-152
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• 1998

The extract from the bulbs of Pancratium maritimum L. afforded 12 alkaloids belonging to the skeletally six different groups of the Amaryllidaceae alkaloids. In this paper, the isolation and identification of (-)-N-demethyl-galanthamine (1), (+)-tazettine (2) and (-)-2-O-demethylmontanine (3) are described. Their structures have been determined by using extensive spectroscopic techniques. This is the first report describing the occurrence of 1 and 3 in this plant.

• Bulletin of the Korean Chemical Society
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• v.7 no.2
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• pp.145-147
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• 1986

Dichlororhodium(Ⅲ) complexes of a flexible quadridentate ligand, N,N'-dimethylethylenediamine-N,N'-diacetic acid (dmedda), have been prepared. Both cis-${\alpha}$ and cis-${\beta}$ isomers have been yielded in the $K[Rh(dmedda)Cl_2]$ complexes, which were characterized with elemental analyses, electronic absorption and proton nuclear magnetic resonance spectroscopic data.