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A New Epoxynaphthoquinol from Rumex japonicus
Zee, Ok Pyo,Kim, Dae Keun,Kwon, Hak Cheol,Lee, Kang Ro 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1
A new epoxynaphthoquinol derivative, 3-acetyl-2-methyl-1, 5-dihydroxy-2,3-epoxynaphthoquinol(Ⅰ), was isolated from the root of Rumex japonicus. The structure was elucidated by high field 1D and 2D NMR techniques.
A New Cytotoxic Acyclic Diterpene from Carpesium divaricatum
Zee, Ok-Pyo,Kim, Dae-Keun,Choi, Sang-Un,Lee, Chong-Ock,Lee, Kang-Ro The Pharmaceutical Society of Korea 1999 Archives of Pharmacal Research Vol.22 No.2
A new acylcic deterpene (1) and a known acyclic diterpene 12(S)-hydroxygeranyleraniol (2) were isolated form the aerial parts of Carpesium divaricatum. The structure of 1 was determined to be (2E, 10E)-1, 12-dihydroxy-18-acetoxy-3,7,15-trimethylhexadeca-2,10,14-triene (1) on the basis of spectroscopic studies. Compounds 1 and 2 exhibited cytotoxicity against cultured human tumor cell lines, A549, SK-OV-3, SK-MEL-2, XF498, and $HCT_{15}$, with $ED_{50}$ values ranging from 4.3-10.2 ${\mu}g/ml$ and 4.1-8.3 ${\mu}g/ml$, respectively.
Thymol Derivatives from Carpesium divaricatum
Zee, Ok Pyo,Kim, Dae Keun,Lee, Kang Ro 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1
Four thymol derivatives, 2,5-dimethoxythymol ⑴, 2-methoxythymol isobutyrate ⑵, 10-isobutyloxy-8,9-epoxythymolisobutyrate ⑶ and 10-(2-methylbutyloxy)-8,9-epoxythymolisobutyrate ⑷ were isolated from the aerial parts of Carpesium divaricatum. The structures were elucidated by high field 1D and 2D NMR techniques.
Thymol Derivatives form Carpesium divaricatum
Zee, Ok-Pyo,Kim, Dae-Keun,Lee, Kang-Ro The Pharmaceutical Society of Korea 1998 Archives of Pharmacal Research Vol.21 No.5
Four thymol derivatives, 2,5-dimethoxythymol (1), 2-methoxythymol isobutyrate (2), 10-isobutyloxy-8,9-epoxythymolisobutyrate (3) and 10-(2-methylbutyloxy)-8,9-eposythymolisobutyrate (4) were isolated from the aerial parts of Carpesium divaricatum. the structures were elucidated by high field 1D and 2D NMR techniques.
A New Epoxynaphthoquinol from Rumex japonicus
Zee, Ok-Pyo,Kim, Dae-Keun,Kwon, Hak-Cheol,Lee, Kang-Ro The Pharmaceutical Society of Korea 1998 Archives of Pharmacal Research Vol.21 No.4
A new epoxynaphthoquinol derivative, 3-acetyl-2-methyl-1, 5-dihydroxy-2,3-epoxynaphthoquinol (I), was isolated from the root of Rumex japonicus. The structure was elucidated by high field 1D and 2D NMR techniques.
대식세포에서 국산약용식물의 항암 및 항Virus 에 대한 효과
표석능(Suhkneung Pyo),지옥표(Ok Pyo Zee),엄성희(Sung Hee Um),김대근(Dae Keun Kim),곽종환(Jong Whan Kwak),이강노(Kang Ro Lee),이동권(Dong Kwon Rhee) 한국생약학회 1995 생약학회지 Vol.26 No.3
In the present work, 70 extracts from 23 plants have been determined to induce cytotoxic and antiviral activities of macrophages using both MTT assay and neutral red dye uptake assay. We show that 13 extracts have induced cytotoxic activities and 5 extracts induced antiviral activity in mouse peritoneal macrophages. Among 13 extracts, macrophages treated with extracts from Salvia plebeia have demonstrated significant cytotoxicity but not antiviral activity. The present findings indicate that extracts from plants can stimulate macrophages to become resistant to virus and to kill tumor cells.