Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Keun Young Jung"'
Autor:
Jung Joon Lee, Hyeong Kyu Lee, Sei-Ryang Oh, Si Hyung Park, Jae Gil Kim, Im Seon Lee, Keun Young Jung, Kyung-Seop Ahn
Publikováno v:
Archives of Pharmacal Research. 22:428-431
Seven known oleanolic acid glycosides (1-7) were isolated from the MeOH extract of Tiarella polyphylla. The structures were identified to be 3-O-(beta-D-glucopyranosyl) oleanolic acid (1), 3-O-[beta-D-glucopyranosyl-(1--3)-beta-D-glucopyranosyl] olea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8eefcf9f6c7673f48000fab1f4a66ea7
https://doi.org/10.1007/bf02979071
https://doi.org/10.1007/bf02979071
Autor:
Jung Joon Lee, Si Hyung Park, Sei-Ryang Oh, Hyeong-Kyu Lee, Im Seon Lee, Kyung Seop An, Keun Young Jung, Shi Yong Ryu
Publikováno v:
Archives of Pharmacal Research. 21:703-706
The anticomplementary activity of stilbenes from medicinal plants in Korea was investigated in vitro. 3,5-Dihydroxy-4'-methoxystilbene (3) was most potent with IC50 value of 1.5 x 10(-4) M followed by rhapontigenin (4), oxyresverastrol (2), 2,3,4',5-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb1048fa2943aa5326d36c4a6617c412
https://doi.org/10.1007/bf02976761
https://doi.org/10.1007/bf02976761
Autor:
Im Seon Lee, Hyeong Kyu Lee, Sei-Ryang Oh, Jung Joon Lee, Dong-Seon Kim, Si Hyung Park, Eun-Hee Kim, Keun Young Jung, Chaejoon Cheong
Publikováno v:
Phytochemistry. 48:1383-1386
From the Chinese crude drug shin-i, the flower buds of Magnolia fargesii, a new cycloeudesmane-type sesquiterpene, 5α,7α(H)-6,8-cycloeudesma-1β,4β-diol, was isolated. The structure was elucidated by means of various NMR techniques. This compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e14538d754744969c0ba1514006258d
https://doi.org/10.1016/s0031-9422(98)00040-5
https://doi.org/10.1016/s0031-9422(98)00040-5
Autor:
Dong-Seon Kim, Hyeong Kyu Lee, Sei-Ryang Oh, Im Seon Lee, Keun Young Jung, Si Hyung Park, Dong-Hyuk Shin, Jung Joon Lee
Publikováno v:
Journal of Natural Products. 61:808-811
In a search for platelet-activating-factor (PAF) antagonists, two new lignan compounds were isolated from the Chinese crude drug shin-i, the flower buds of Magnolia fargesii. Their structures were elucidated as (2S,3R,4R)-tetrahydro-2-(3,4-dimethoxyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a382f58b8111dcba00244ab1f4803e39
https://doi.org/10.1021/np970445+
https://doi.org/10.1021/np970445+
Autor:
Hyeong Kyu Lee, Jung Joon Lee, Sei-Ryang Oh, Dong-Hyuk Shin, Chaejoon Cheong, Eun-Hee Kim, Dong-Seon Kim, Im Seon Lee, Keun Young Jung
Publikováno v:
Archives of Pharmacal Research. 20:363-367
From the Chinese crude drugshin-i, the flower buds ofMagnolia fargesii, four sesquiterpene, oplopanone (1), oplodiol (2), homalomenol A (3) and 1beta,4beta,7alpha-trihydroxyeudesmane (4) were isolated. These structures were elucidated and the(13)C-NM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2689fc7f0f031166ade8046abc660345
https://doi.org/10.1007/bf02976201
https://doi.org/10.1007/bf02976201
Autor:
Hyeong-Kyu Lee, Dong-Seon Kim, Sei-Ryang Oh, Nam-In Baek, Jung Hee Kim, Keun Young Jung, Im Seon Lee
Publikováno v:
Archives of Pharmacal Research. 20:201-205
A very high content (at least 0.23%) of ergosterol peroxide was isolated fromNaematoloma fasciculare Karst. Not only ergosterol peroxide but also ergosterol showed very strong anticomplementary activity on the classical pathway, the IC(50) values bei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::607485fe2b30e069dfc472246a11fd9d
https://doi.org/10.1007/bf02976145
https://doi.org/10.1007/bf02976145
Publikováno v:
International Journal of Pharmacognosy. 35:358-363
Citrostadienol was isolated from the fruits of Schizandra chinensis Baill: (Schizandraceae) by silica gel chromatography and assigned fully by spectroscopic analyses (1H-1H COSY: HMQC and HMBC). It demonstrated higher inhibition activity on classical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::608d50c94d46ab80911a44fe360e6d8d
https://doi.org/10.1080/09251619708951283
https://doi.org/10.1080/09251619708951283
Publikováno v:
Journal of Natural Products. 58:778-781
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a89f17f5931de6e0e23e7d665c6f180b
https://doi.org/10.1021/np50119a022
https://doi.org/10.1021/np50119a022
Publikováno v:
Journal of Natural Products. 56:1912-1916
The roots of Dipsacus asper have yielded two new triterpenoid saponins, dipsacus saponins B [1] and C [2], which have been characterized by chemical and spectral means and spectral means as hederagenin-3-O-beta-D-glucopyranosyl-(1-->4)-[alpha-L-rhamn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fdadb06cffc14fe7964b0324ed80550
https://doi.org/10.1021/np50101a007
https://doi.org/10.1021/np50101a007
Publikováno v:
Archives of Pharmacal Research. 16:32-35
Four triterpenoids were isolated from the roots ofDipsacus asper. On the basis of chemical and spectral evidence, the structures of these compounds have been elucidated to be hederagenin (1), hederagenin 3-O-α-L-arabinoside (2). 3-O-α-L-arabinopyra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e34cb1670952acbb7591858493f87d56
https://doi.org/10.1007/bf02974125
https://doi.org/10.1007/bf02974125