Zobrazeno 1 - 10 of 37 pro vyhledávání: '"Masahira Nakagawa"'
1
Nisamycin, a new manumycin group antibiotic from Streptomyces sp. K106. I. Taxonomy, fermentation, isolation, physico-chemical and biological properties
Autor: Mitsuru Nakayama, Masahira Nakagawa, Ken-ichiro Hayashi
Publikováno v: The Journal of Antibiotics. 47:1104-1109
Nisamycin, a new manumycin group antibiotic, was isolated from the culture broth of Streptomyces sp. K106. This strain was designated to genus Streptomyces by the taxonomic features. Nisamycin was purified by ethyl acetate extraction, silica gel colu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdcdceaea6ecca4e9cac5bbc6c128e1a
https://doi.org/10.7164/antibiotics.47.1104
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2
A novel quinone antibiotic from Malbranchea cinnamomea TAIM 13T54
Autor: Mitsuru Nakayama, Gueh-Yuh Chen, Hiroshi Nozaki, Masahira Nakagawa, Zuei-Ching Chen, Tomoyuki Fujita, Yin-Mei Chiung
Publikováno v: The Journal of Antibiotics. 46:1819-1826
A novel quinone antibiotic named malbranicin was isolated from the culture filtrate and mycelium of Malbranchea cinnamomea TAIM 13T54, a thermophilic fungus. The antibiotic was elucidated to be 6-(1-acetylethyl)-2-methoxy-2,5-cyclohexadiene-1,4-dione
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdafac83b91ae296b20a4432c5697655
https://doi.org/10.7164/antibiotics.46.1819
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3
Nisamycin, a new manumycin group antibiotic from Streptomyces sp. K106
Autor: Shinji Tanimori, Masahira Nakagawa, Mitsuru Nakayama, Ken-ichiro Hayashi, Tomoyuki Fujita
Publikováno v: The Journal of Antibiotics. 46:1904-1907
Nisamycin, a novel manumycin group antibiotic, was isolated from the culture broth of Streptomyces sp. K106. Structural elucidation of nisamycin was achieved by detailed NMR spectral analyses and comparison of the NMR data of nisamycin with those of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a3742810c852345f10bfbadb1808059
https://doi.org/10.7164/antibiotics.46.1904
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4
ChemInform Abstract: Reduction and Stereochemistry of Terrecyclic Acid A and Its Derivatives
Autor: Hiroshi Hirota, Shingo Kakita, Akira Isogai, Akira Hirota, Masahira Nakagawa, Takeyoshi Takahashi
Publikováno v: ChemInform. 22
Two kinds of hydride (sodium borohydride and diisobutylaluminium hydride) and catalytic hydrogenation have been used to reduce terrecyclic acid A 1 and several derivatives 5,6,7 and 15. Some interesting stereochemical results were obtained.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03779fef7c45fb89a696ace35a2ca190
https://doi.org/10.1002/chin.199112338
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7
(1R,6R,9S,10S)-9-Chloro-10-hydroxy-8-methoxycarbonyl-4-methylene-2,5-dioxabicyclo[4.4.0]Dec-3-one-7-ene, a first chlorine-containing shikimate-related metabolite from fungi
Autor: Mitsuru Nakayama, Eiji Kitamura, Hiroshi Nozaki, Manabu Nukina, Toshiji Tada, Masahira Nakagawa, Hiroshi Hirota, Akira Hirota
Publikováno v: Tetrahedron Letters. 31:4605-4608
A new chlorine-containing metabolite has been isolated from two fungi, and its structure including absolute stereochemistry was established by spectroscopic and X-ray crystallographic studies.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e85f360a0a5db6428a0c165e0fc830e
https://doi.org/10.1016/s0040-4039(00)97687-1
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8
Nisamycin, a new manumycin group antibiotic from Streptomyces sp. K106. II. Structure determination and structure-activity relationships
Autor: Ken-ichiro Hayashi, Tomoyuki Fujita, Masahira Nakagawa, Mitsuru Nakayama, Shinji Tanimori
Publikováno v: The Journal of antibiotics. 47(10)
Nisamycin, a novel manumycin group antibiotic, was isolated from the culture broth of Streptomyces sp. K106. Structural elucidation of nisamycin was achieved by detailed NMR spectral analyses and comparison of the NMR data of nisamycin with those of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d7edc732e4e0fef26c9077e97c4f2f4
https://pubmed.ncbi.nlm.nih.gov/7961160
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9
Absolute Stereochemistry of Alisamycin
Autor: Tomoyuki Fujita, Ken-ichiro Hayashi, Mitsuru Nakayama, Masahira Nakagawa
Publikováno v: Bioscience, Biotechnology, and Biochemistry. 58:1332-1333
Alisamycin is a new manumycin group antibiotic. Manumycin group antibiotics have three asymmetric carbons at C4, C5, and C6 in their structures. The absolute structure of alisamycin was determined by the exciton chirality method and CD spectrum of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b681d971f8f2c005fadeee522e2af0f
https://doi.org/10.1271/bbb.58.1332
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