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강삼식(Sam Sik Kang),우원식(Won Sick Woo) 한국생약학회 1984 생약학회지 Vol.15 No.1
In the previous communications^(1,2)), we reported on the isolation of new flavone-C-glycosides, spinosin and its acyl compounds as sedative principles, from the seeds of Zizyphus jujuba (Rhamnaceae). In continuation of our work on this plant, we examined leaves to isolate rutin, mp 180-80˚and isoquercitrin, mp 236-8˚ but not to detect any flavone-C-glycosides. This is the first report of their occurrence in this plant. 1) W.S. Woo, S.S. Kang, S.H. Shin, H. Wanger, V.M. Chari, O. Seligmann and G. Obermeiner, Phytochemistry, 18, 353(1979). 2) W.S. Woo, S.S. Kang, H. Wagner, O. Seligmann and V.M. Chari, Phytochemistry, 19, 2791 (1980).
강삼식(Sam Sik Kang),최재수(Jae Sue Choi),우원식(Won Sick Woo),지형준(Hyung Joon Chi) 한국생약학회 1984 생약학회지 Vol.15 No.1
In a previous communication, we reported on the isolation and structure elucidation of a new flavonol glucoside, 3, 3`-dimethyl quercetin-4`-O-glucoside. Further investigation on this plant resulted in the isolation of two flavonol glycosides, isorhamnetin-3-O-glucoside, mp215-8˚, [α]_D-21.7˚and isorhamnetin-3-O-neohesperidoside, mp 194 -7˚, [α]_D-104˚. This is the first report of the occurrence of both compounds from this plant.
합환피의 성분에 관한 연구 (Ⅴ) : Futher Study of Sapogenins
강삼식(Kang Sam Sik),우원식(Woo Won Sick) 한국생약학회 1982 생약학회지 Vol.13 No.4
In a previous communication we reported on the isolation and structure elucidation of 3`, 4`, 7-trihydroxyflavone, α-spinasteryl-D-glucoside, acacic acid lactone and machaerinic acid methylester from the stembark of Albixzia julibrissin (Leguminosae). In this communication the isolation of two sapogenins; acacigenin B, mp 278˚∼81˚, [α]_D+56.7˚and sapogenin B, mp 240˚, [α]_D+14.75˚ will be presented. This is the second report of acacigenin B, a monoterpene ester of acacic acid, from plant source.
Anthraquinones from the Leaves of Polygonum sachalinense
Sam-Sik Kang(강삼식),Won-Sick Woo(우원식) 한국생약학회 1982 생약학회지 Vol.13 No.1
From the leaves of Polygonum sachalinense Fr. Schm. (Polygonaceae) physcion (I) mp 205∼6°, emodin (II) mp 248∼50°, physcion-8-0-β-glycoside (III) mp 245∼6°and emodin-8-0-β-glucoside (IV) mp 186∼8°were isolated.
Isorhamnetin Glycosides from the Leaves of Typha latifolia
Sam Sik Kang(강삼식),Jae Sue Choi(최재수),Won Sick Woo(우원식),Hyung-Joon Chi(지형준) 한국생약학회 1983 생약학회지 Vol.14 No.4
From the leaves of Typha latifolia, L. (Thyphaceae) isorhamnetin-3-O-glucoside and isorhammetin-3-O-neohesperidoside were isolated and characterized by chemical and spectral analysis.
A New Phenolic Aldehyde from the Seeds of Phytolacca americana
우원식(Won Sick Woo),강삼식(Sam Sik Kang) 한국생약학회 1979 생약학회지 Vol.10 No.2
Caffeic aldehyde was isolated from the seeds of Phytolacca americana. This is the first reported occurrence of the compound in nature.
상륙성분에 관한 연구(Ⅱ) : 자리공, 양자리공, 섬자리공의 성분비교
우원식(Won Sick Woo),지형준(Hyung-Joon Chi),강삼식(Sam Sik Kang) 한국생약학회 1976 생약학회지 Vol.7 No.1
Steroid and terpenoid constituents of 3 species of genus Phytolacca have been examined by TLC. All contained α-spinasterol, its glucoside and acylated glucoside, jaligonic acid and its methylester, esculentic acid and its methylester, and 10 phytolaccosides. Jaligonic acid was the major free triterpenoid and phytolaccoside E was the major saponin in all plants. Bayogenin, oleanolic acid, spergulagenic acid, acinosolic acid, hederogenin, and their derivatives contained in other Phytolacca spp. were not found in these plants.