Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Chong-Ok Lee"'
Cytotoxic cytochalasins from the endozoic fungus Phoma sp. of the giant jellyfish Nemopilema nomurai
Autor:
Eun La Kim, Jian Lin Li, Hung The Dang, Jongki Hong, Chong-Ok Lee, Dong-Kyoo Kim, Won Duk Yoon, Euikyung Kim, Yonghong Liu, Jee H. Jung
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 22:3126-3129
Four new cytochalasin derivatives (1-4), together with cytochalasin B (5), were isolated from the fungus Phoma sp. obtained from the giant jellyfish Nemopilema nomurai. The planar structure and relative stereo-chemistry were established by analysis o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3806cb9cd63990070566dc8281f286b6
https://doi.org/10.1016/j.bmcl.2012.03.058
https://doi.org/10.1016/j.bmcl.2012.03.058
Publikováno v:
Archives of Pharmacal Research. 28:285-289
Two new sulfated saponins designated as certonardosides P2 and I3 (1 and 2) were isolated from the brine shrimp active fraction of the MeOH extract of the starfish Certonardoa semiregularis. The structures were determined on the basis of spectral ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::295e0e148c2e38139908fadf8de035b7
https://doi.org/10.1007/bf02977793
https://doi.org/10.1007/bf02977793
Autor:
Jee H. Jung, Jongki Hong, Weihong Wang, Song-Ja Bae, Kwang Sik Im, Chong-Ok Lee, Hyo-Jin Jang
Publikováno v:
Journal of Natural Products. 67:1654-1660
Twelve new (1-7, 9-13) polyhydroxysterols and two new saponins (14 and 15) were isolated from the starfish Certonardoa semiregularis by activity-guided fractionation. Compounds 1-7 are rare examples of 15-keto steroids from starfish. The side chain o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ec18ec2fa35ffe04774c52d1e49a6f6
https://doi.org/10.1021/np049869b
https://doi.org/10.1021/np049869b
Autor:
Jee H. Jung, Jongki Hong, Famei Li, Sook Shin, Kwang Sik Im, Weihong Wang, Yujin Park, Chong-Ok Lee, Jae Yang Kong
Publikováno v:
Journal of Natural Products. 66:384-391
Thirteen new polyhydroxysterols (1-5, 7-12, 14, 15) and two known polyhydroxysterols (6, 13) were isolated from the brine shrimp active fraction of the starfish Certonardoa semiregularis. The structures were determined on the basis of spectral analys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f567854dcb9087439197665da33e2863
https://doi.org/10.1021/np020507i
https://doi.org/10.1021/np020507i
Publikováno v:
Chemical and Pharmaceutical Bulletin. 51:435-439
Four new saponins, designated as certonardosides K-N (1-3, 5), were isolated, along with culcitoside C(6) (4), from the brine shrimp active fraction of the starfish Certonardoa semiregularis. The structures were determined on the basis of spectral an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85750c26ea166b3ec19ac033435468ec
https://doi.org/10.1248/cpb.51.435
https://doi.org/10.1248/cpb.51.435
Publikováno v:
Chemical and Pharmaceutical Bulletin. 55:459-461
A new butenolide (1) was isolated, along with a known acyclic polyhalogenated monoterpene (2), from the brittle star Ophiomastix mixta. The structures were defined by analysis and comparision of the spectral data with those in the literature. The 2,3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b5300dd91526fbd983a28f0e31cd89f
https://doi.org/10.1248/cpb.55.459
https://doi.org/10.1248/cpb.55.459
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 8:41-46
To investigate the structure-activity relationship of 7,8-dimethoxy-2-methyl-3-(4,5-methylenedioxy-2-vinylphenyl)isoquinolin-1(2 H )-one 2 , diverse substituted 3-arylisoquinolines were synthesized and tested in vitro antitumor activity against five
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::260d24fc4f55a5b1917875fa04a6c447
https://doi.org/10.1016/s0960-894x(97)10190-1
https://doi.org/10.1016/s0960-894x(97)10190-1
Autor:
Yang Ha Cho, Ok-Sang Jung, Chong Ok Lee, Hyonggee Baek, Youn Soo Sohn, Yun Soo Kim, Young-A Lee
Publikováno v:
International Journal of Pharmaceutics. 153:79-91
A novel class of water-soluble polyphosphazene-(diamine)platinum(II) conjugate drugs [N=P(S)Am·PtA 2 )] n have been designed and synthesized by incorporating the antitumor (diamine)platinum(II) moiety (A 2 Pt 2+ ) to a polyphosphazene back-bone alon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0207805185b376bfe22909699c84059f
https://doi.org/10.1016/s0378-5173(97)00098-7
https://doi.org/10.1016/s0378-5173(97)00098-7
Publikováno v:
Journal of Natural Products. 64:533-535
A known (1) and four new (2--5) lyso-PAF (platelet activating factor) derivatives were isolated from the sponge Spirastrella abata. Two of them are unprecedented in having a methoxy group at C-2'. The structures have been determined by combined spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73d68ceccd57ffdaee25266bdc81ff89
https://doi.org/10.1021/np0005210
https://doi.org/10.1021/np0005210
Publikováno v:
ChemInform. 29
To investigate the structure-activity relationship of 7,8-dimethoxy-2-methyl-3-(4,5-methylenedioxy-2-vinylphenyl)isoquinolin-1(2 H )-one 2 , diverse substituted 3-arylisoquinolines were synthesized and tested in vitro antitumor activity against five
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae257f02ab6f2746ea1643d7ecb453ea
https://doi.org/10.1002/chin.199818162
https://doi.org/10.1002/chin.199818162