Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Byeng Wha Son"'
Autor:
Jongki Hong, Alain Simplice Leutou, Choong-Hwan Lee, Byeng Wha Son, Keumja Yun, Trung Thang Khong, Gun-Do Kim
Publikováno v:
CHEMICAL & PHARMACEUTICAL BULLETIN. 64:59-62
Cristazine (1), a new class of dioxopiperazine alkaloid, along with previously isolated chetomin (2), neoechinulin A (3), and golmaenone (4), were isolated from the mudflat-sediment-derived fungus Chaetomium cristatum. The structure and absolute ster
Publikováno v:
Bulletin of the Korean Chemical Society. 36:2391-2393
Publikováno v:
Bulletin of the Korean Chemical Society. 35:2870-2872
E-mail: sonbw@pknu.ac.krReceived May 9, 2014, Accepted May 30, 2014Key Words : Stappia sp., Microbial transformation, 2-(3,4-Dihydroxyphenyl)acetic acid, Methyl 2-(5,6-dibro-mo-3,4-dihydroxyphenyl)acetateThe aim of our program is to explore the biolo
Autor:
Choong-Hwan Lee, Jongki Hong, Trung Thang Khong, Alain Simplice Leutou, Gun-Do Kim, Byeng Wha Son, Keumja Yun
Publikováno v:
ChemInform. 47
The structure and absolute stereochemistry of cristazine (I), a new class of dioxopiperazine alkaloid, is presented.
Publikováno v:
Journal of Microbiology and Biotechnology. 22:80-83
The addition of NaBr to the fermentation medium of a marine isolate of the fungus Dothideomycete sp. resulted in induced production of two toluhydroquinone derivatives, 5- bromotoluhydroquinone (1) and 4-O-methyltoluhydroquinone (2), and two known co
Publikováno v:
Archives of pharmacal research. 39(6)
The addition of metal bromides (NaBr and CaBr2) during fermentation of the marine-mudflat-derived fungus Aspergillus niger induced production of a new radical scavenging brominated naphthopyranone, 6,9-dibromoflavasperone (1); and three known naphtho
Autor:
Jung Sook Kang, Zhile Feng, Hong Dae Choi, Byeng Wha Son, Viviane N. Nenkep, Guohua Yang, Alain Simplice Leutou, Xavier N. Siwe
Publikováno v:
Bulletin of the Korean Chemical Society. 30:2345-2350
As part of an effort to discover bioactive natural products from marine sources, we investigated the bioactive secondary metabolites from two marine isolates of the fungi, Trichoderma viride and Rhizopus stolonifer. Three cyclopentenones, myrothenone
Autor:
Byeng Wha Son, Tayyab A. Mansoor, Chung Ja Sim, Jee H. Jung, Jongki Hong, Xuan Luo, Pramod B. Shinde, Chong-O. Lee
Publikováno v:
Journal of Natural Products. 70:1481-1486
Guided by the brine shrimp lethality assay, eight new cerebrosides (1-8) have been isolated from an extract of the marine sponge Haliclona (Reniera) sp. A novel feature of these cerebrosides was the presence of unprecedented amide-linked long-chain f
Autor:
Dong-Kyoo Kim, Xifeng Li, Hong Dae Choi, Jung Sook Kang, Jee H. Jung, Young Hwa Kim, Byeng Wha Son
Publikováno v:
Enzyme and Microbial Technology. 40:1188-1192
Biological transformation of the bioactive sesquiterpene, cyclonerodiol ( 1 ), isolated from marine-derived fungus Myrothecium sp., was studied. Preparative-scale fermentation of 1 with marine-derived fungus Penicillium sp. resulted in the isolation
Publikováno v:
Phytochemistry. 66:1685-1690
Two new abietane-type diterpenoid o -quinones, 7β-methoxyabieta-8,13-diene-11,12-dione-(20,6β)-olide (rosmaquinone A) ( 1 ) and 7α-methoxyabieta-8,13-diene-11,12-dione-(20,6β)-olide (rosmaquinone B) ( 2 ), together with six known compounds were i