Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Mitsuo Numata"'
Publikováno v:
Journal of Toxicology: Clinical Toxicology. 36:73-76
Poison centers are faced with the escalating costs of specialist staffing and increased investments in hardware and databases despite deficit funding. We developed an automated fax information system to access poison information from any fax machine
Publikováno v:
ChemInform. 22
Guinesines A, B and C were synthesized starting from 1,3-bis(benzylthio)-2-propanone and N-methyl-2,2-diethoxypyrrolidine.
Autor:
Hiroyuki Mitsudera, Yoshiaki Kono, Yukiaki Manabe, Mitsuo Numata, Hideki Uneme, Toshiya Kamikado
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 56:2023-2033
A series of 1,2-dithiolanes, 1,2-dithianes and related compounds bearing a nitrogen-containing substituent were synthesized and their pesticidal activity was tested. A new general synthetic route to 1,2-dithiolanes was established from 1,3-diols. A v
Autor:
Mitsuo Numata, Yoshiaki Kono, Hiroyuki Mitsudera, Hideki Uneme, Yukiaki Manabe, Yamada Junji, Toshiya Kamikado
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 56:1293-1299
The structures of the insecticidal alkaloids, guinesines (4-hydroxy-3-(I-methyl-2-pyrrolidinyl)-1,2-ditbiolanes), were simplified in several ways while retaining the dithiolane ring. Most of the compounds synthesized showed activity against Chilo sup
Autor:
Hiroyuki Mitsudera, Yukiaki Manabe, Toshiya Kamikado, Yoshiaki Kono, Hideki Uneme, Mitsuo Numata, Yamada Junji
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 56:1623-1631
A variety of derivatives of 3- and 4-(dimethylaminomethyl)-1,2-dithiolanes were prepared as their biological equivalents in an analogous way to that for the nereistoxin derivatives. Most of them sh...
Publikováno v:
Journal of Heterocyclic Chemistry. 27:1361-1367
Guinesines A, B and C were synthesized starting from 1,3-bis(benzylthio)-2-propanone and N-methyl-2,2-diethoxypyrrolidine.
Publikováno v:
The Journal of Antibiotics. 31:1252-1261
New cephalosporins modified in the acyl part of 7-(3'-oxobutyrylamino)cephalosporins (1), which have been described in the preceding paper, were synthesized by thiolation at the 2'- or the 4'-position, or by transforming the 3'-oxo group into a 3'-im
Autor:
Takatsuka Yashiki, Masayoshi Yamaoka, Mitsuo Numata, Nishimura Tatsuo, Naoru Hamaguchi, Shin-Ichiro Hirai, Yoshinobu Yoshimura, Kunio Takanohashi, Akio Miyake
Publikováno v:
The Journal of Antibiotics. 40:81-90
Orally active 1-(alkyl substituted cyclohexyloxycarbonyloxy)alkyl ester prodrugs (9b-h) of 7 beta-[2-(2-aminothiazol-4-yl)acetamido]-3- [[[1-(2-dimethylaminoethyl)-1H-tetrazol-5-yl]thio]-methyl]ceph+ ++-3- em-4-carboxylic acid (cefotiam, CTM) have be
Autor:
Mitsuo Numata, Masayasu Kato, Norichika Matsumoto, Michiyuki Sendai, Mitsuru Shiraishi, Susumu Tsushima, Kenzo Naito
Publikováno v:
Chemical and Pharmaceutical Bulletin. 27:696-702
New compounds 3-acetoacetoxymethyl-7β-acylaminoceph-3-em-4-carboxylic acids (4) were synthesized from deacetylcephalosporin C (3a), after N-protection of the amino-adipoyl group followed by acetoacetylation of the 3'-hydroxyl with diketene and acyl
Publikováno v:
Chemical and Pharmaceutical Bulletin. 21:112-117
The N-methyls in 2, 3-disubstituted N, N-dimethylpropylamines (I-VIII) have given two peaks with an equal intensity in an acid solution owing to the hindered internal rotation about the C-NMe2H+ bond. The energy barriers between two staggered forms h