Zobrazeno 1 - 10
of 87
pro vyhledávání: '"KUNIKATSU SHIRAHATA"'
Publikováno v:
ChemInform. 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15c196f8bf4f07a2a32f47faba74651a
https://doi.org/10.1002/chin.199542258
https://doi.org/10.1002/chin.199542258
Publikováno v:
The Journal of Antibiotics. 44:301-308
The first example of C-3 alkoxylation in mitomycins has been achieved. 3 alpha-iso-Propoxy-10-O-decarbamoylmitomycin D (4) and 3 alpha-iso-propoxymitomycin D (5) were derived from mitomycin D (3) under decarbamoylation conditions with iso-propoxide.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81e8aefe92351c8e07b245fbec611a4c
https://doi.org/10.7164/antibiotics.44.301
https://doi.org/10.7164/antibiotics.44.301
Autor:
Kazumi Araki, Junko Shimomura-Nishimuta, Shuichi Ishino, Kunikatsu Shirahata, Kazuo Yamaguchi
Publikováno v:
The Journal of General and Applied Microbiology. 37:157-165
Glucose metabolism in Corynebacterium glutamicum was investigated using 13C nuclear magnetic resonance (13C NMR) spectroscopy. L-Glutamic acid and L-lysine producers were cultivated in medium containing [1-13C]- or [6-13C] glucose, and the 13C NMR sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1df21ccf756bd18a1a1d32030b745e5d
https://doi.org/10.2323/jgam.37.157
https://doi.org/10.2323/jgam.37.157
Publikováno v:
The Journal of Antibiotics. 44:309-312
The configuration of mitiromycin (2) was first determined by NMR experiments including the NOE technique. The absolute structure of 2 was related to mitomycin B (3) because 2 was derived from 3 under basic conditions. The ketonic form 4 was presumed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::391b7ef7d50e6d7b6312e893ae919d44
https://doi.org/10.7164/antibiotics.44.309
https://doi.org/10.7164/antibiotics.44.309
Publikováno v:
The Journal of Antibiotics. 43:383-390
Mitomycin G (2) was derived from porfiromycin (10b) in 3 steps via the methanesulfonate (14b) in an overall yield of 39%. On the basis of the established method for the introduction of an exomethylene group in mitomycins with a 9a-methoxy group, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95da505a179487b677465da781e1921e
https://doi.org/10.7164/antibiotics.43.383
https://doi.org/10.7164/antibiotics.43.383
Publikováno v:
The Journal of antibiotics. 48(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dba5a2c91ac375ec9d40c9e5eec34e2
https://pubmed.ncbi.nlm.nih.gov/7706131
https://pubmed.ncbi.nlm.nih.gov/7706131
Autor:
Makoto Morimoto, Yutaka Saitoh, Tadashi Ashizawa, Masaji Kasai, Kunikatsu Shirahata, Motomichi Kono
Publikováno v:
The Journal of antibiotics. 46(9)
The reaction between mitomycin A (1) and cysteamine afforded 7-N,7'-N'-bis(2-thioethyl)dimitomycin C (7), 7-N-[2-[(2-aminoethyl)dithio]ethyl]mitomycin C (8), and 7-methoxy mitosenes (10, 11). The structures of 7 and 8 were elucidated on the basis of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d0a4edf73ded1bc8574ff474c130422
https://pubmed.ncbi.nlm.nih.gov/8226321
https://pubmed.ncbi.nlm.nih.gov/8226321
Publikováno v:
ChemInform. 21
L'epimere obtenu a la meme stereochimie en C-9 que la mitomycine C. L'epimerisation s'est faite via une decarbamoylation/amination/carbamoylation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bfbee89b9b43a8b80cd58c14e62e5fe
https://doi.org/10.1002/chin.199024311
https://doi.org/10.1002/chin.199024311
Publikováno v:
ChemInform. 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2209ce1b6c259ad5a6c925ce48bde149
https://doi.org/10.1002/chin.199013319
https://doi.org/10.1002/chin.199013319
Autor:
Akikazu Yasuda, Junko Kubota, Tetsuya Hirano, Hiroshi Kawauchi, Kazuo Yamaguchi, Syunsuke Moriyama, Kunikatsu Shirahata
Publikováno v:
Archives of Biochemistry and Biophysics. 244:542-552
Two molecular forms of salmon growth hormone (sGH), sGH I and II, have been isolated from the pituitary glands of the chum salmon (Oncorhynchus keta); a two-step extraction procedure, under alkaline (pH 10) conditions, subsequent to acid-acetone extr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53a230ee5ecc6c1c00b49344f59073b4
https://doi.org/10.1016/0003-9861(86)90622-3
https://doi.org/10.1016/0003-9861(86)90622-3