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Steroids from the Aerial Parts of Artemisia princeps Pampanini
백남인,이대영,최명숙 한국약용작물학회 2006 韓國藥用作物學會誌 Vol.14 No.5
Three stigmastane-type sterols and one ergostane-type sterol were isolated from the ethyl acetate soluble fractionof the aerial parts of Artemisia princeps Pampanini (Sajuarissuk). From the results of physico-chemical data includingNMR, MS and IR, the chemical structures of the compounds were determined as stigmasta-5,22-dien-3β-ol (stigmasterol, 1),stigmast-5-en-3β-ol (β-sitosterol, 2), 5,8-epidioxy-5β,8β-ergosta-6,22-dien-3β-ol (ergosterol peroxide, 3), and β-sitosterol 3-O-β-D-glucopyranoside (daucosterol, 4).
식용 식물자원으로부터 활성물질의 탐색-IV. 달래(Allium monanthum Max.)로부터 Galactosyldiglyceridem의 분리
백남인,안은미,김해영,박영두,장영진,김세영 한국생명과학회 2001 생명과학회지 Vol.11 No.1
n-BuOH fraction obtained from MeOH extracts of Allium monanthum was applied to repeated silica gel column chromatographies to give a glycosylglyceride. The chemical structure of the compound was determined to be 1-O-linolenoyl-2-O-linolenoyl-3-O-$\beta$-D-galactopyranosyl-누-glycerol on the basis of NMR data and by the adaptation of chemical methods.
Cirsium속 식물로부터 새로운 polyacetylene의 분리
백남인,박종대,이유희,정소영,김신일 대한약학회 1995 약학회지 Vol.39 No.3
A novel polyacetylene was isolated from Cirsium spp., as well as five known ones, and its chemical structure was determined as heptadeca-1-en-11.13-diyne-8R, 9S, 10R-triol(1) on the basis of spectral data and chemical reactions. $^{1}$H-and $^{13}$C-NMR data of these polyacetylenes were completely assigned by the appfication of 2D-NMR techniques.
백남인,김동선 고려인삼학회 1996 Journal of Ginseng Research Vol.20 No.1
Some polyacetylenes were Isolated from the rhizome of Korean red ginseng through re - pealed column chromatogrphy, and identified as 3-hydroxy-1, 9-heptadecadiene-4, 6-diyne (panaxynol), 9, 10-epoxy-3-hydroxy-1-heptadecene-4, 6-diane(panaxydol), 3, 9, 10-trihydroxy-1-heptadecene-4, 6-diyne(panaxytriol), 9, 10-epoxy-3-hydroxy-1, 16-heptadecadiene-4, 6-diyne(ginsenoyne A) and 10-ch1oro-3, 9-dihydroxy-1-heptadecene-4, 6-diane(panaxydol chlorohydrine) by several spectral and chemical methods.
돌단풍(Aceriphyllum rossii)에서 분리한 플라보노이드의 항암활성
백남인,안은미,한재택,권병목,김성훈 한국응용생명화학회 2008 Journal of Applied Biological Chemistry (J. Appl. Vol.51 No.4
The methanol extract from the aerial parts of Aceriphyllum rossii was fractionated into ethyl acetate, n-BuOH and H2O layers through solvent fractionation. Repeated silica gel column chromatography of EtOAc and n-BuOH layers afforded five flavonol glycosides. They were identified as astragalin (1), kaempferol 3-O-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (2), rutin (3), kaempferol 3-O-α-L-rhamnopyranosyl (1→4)-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (4), and quercetin 3-O-α-L-rhamnopyranosyl (1→4)-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (5) on the basis of spectroscopic data. All of them showed an inhibition in farnesyl protein tranferase (FPTase) activity, and rutin (3) inhibited the growth of rat H-ras cell and the cell migration of human umbilical vein endothelial cells (HUVECs). The methanol extract from the aerial parts of Aceriphyllum rossii was fractionated into ethyl acetate, n-BuOH and H2O layers through solvent fractionation. Repeated silica gel column chromatography of EtOAc and n-BuOH layers afforded five flavonol glycosides. They were identified as astragalin (1), kaempferol 3-O-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (2), rutin (3), kaempferol 3-O-α-L-rhamnopyranosyl (1→4)-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (4), and quercetin 3-O-α-L-rhamnopyranosyl (1→4)-α-L-rhamnopyranosyl (1→6)-β-D-glucopyranoside (5) on the basis of spectroscopic data. All of them showed an inhibition in farnesyl protein tranferase (FPTase) activity, and rutin (3) inhibited the growth of rat H-ras cell and the cell migration of human umbilical vein endothelial cells (HUVECs).