Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Tetsuji Nunozawa"'
Autor:
Tetsuji Nunozawa, Shigeo Nozoe, Tomihisa Ohta, Tsutomu Agatsuma, Tadashi Endo, Atsushi Takahashi
Publikováno v:
ChemInform. 25
Five new chlorinated phenyl ethers, russuphelins B (2), C (3), D (4), E (5) and F (6) have been isolated from the mushroom Russula subnigricans Hongo, and their structures were elucidated by spectroscopic and chemical means. Russuphelins B (2), C (3)
Russuphelins B, C, D, E and F, new cytotoxic substances from the mushroom Russula subnigricans Hongo
Autor:
Tetsuji Nunozawa, Tadashi Endo, Shigeo Nozoe, Tsutomu Agatsuma, Tomihisa Ohta, Atsushi Takahashi
Publikováno v:
Chemicalpharmaceutical bulletin. 41(10)
Five new chlorinated phenyl ethers, russuphelins B (2), C (3), D (4), E (5) and F (6) have been isolated from the mushroom Russula subnigricans Hongo, and their structures were elucidated by spectroscopic and chemical means. Russuphelins B (2), C (3)
Autor:
Tetsuji Nunozawa, Shigeo Nozoe, Tomihisa Ohta, Mamoru Matsuda, Tsutomu Agatsuma, Takeshi Endo, Akira Takahashi
Publikováno v:
Chemicalpharmaceutical bulletin. 40(12)
A new cytotoxic substance, designated russuphelin A (1), has been isolated from the mushroom Russula subnigricans HONGO(Basidiomycetes). The structure was elucidated as 2, 6-bis(2, 6-dichloro-4-hydroxyphenyloxy)-1, 4-dimethoxy-benzene on the basis of
Publikováno v:
Chemical and Pharmaceutical Bulletin. 40:1313-1314
1-β-D-Arabinofuranosylcytosine (ara-C), an anticancer drug, has been isolated for the first time from a natural source, the mushroom Xerocomus nigromaculatus HONGO.
Publikováno v:
Tetrahedron Letters. 20:1683-1686
Asymmetric reduction of α-ketoester with a chiral dihydronicotinamide was significantly affected by chiral aromatic additives, capable of exerting an attractive interaction with dihydropyridine ring, which was further consolidated through with magne
Autor:
Takashi Honda, Hiroshi Murasaki, Eiichi Nakajima, Toru Komai, Yukio Matsubara, Hiroshi Kozuka, Tetsuji Nunozawa, Shigeto Fujishita
Publikováno v:
Drug Metabolism and Pharmacokinetics. 3:275-285
The blood and plasma levels, distribution and excretion of S-adenosyl-L-methionine sulfate tosylate (FO-1561) were studied in rats afer intravenous administration of [CH3-14C] FO-1561. 1. After intravenous administration of 10 mg/kg to rats, the bloo
Autor:
Tetsuji Nunozawa, Toru Komai, Takashi Honda, Yukio Matsubara, Hiroshi Murasaki, Hiroshi Kozuka, Shigeto Fujishita
Publikováno v:
Drug Metabolism and Pharmacokinetics. 3:287-300
The biotransformation of S-adenosyl-L-methionine sulfate tosylate (FO-1561) was studied in rats after intravenous administration of 14C-labeled FO-1561 at a dose of 10 mg (as S-adenosyl-L-methionine)/kg. 1. After intravenous administration of [Ade-8-
Publikováno v:
Chemical and Pharmaceutical Bulletin. 28:920-925
Publikováno v:
Chemical and Pharmaceutical Bulletin. 28:3223-3231
Grignard reaction of 2, 3, 4-tri-O-benzyl-D-xylopyranose yielded a single product with very high stereoselectivity. A threo relationship of the newly created chiral center with respect to C2 was established by converting the product into the δ-lacto
Publikováno v:
Chemical and Pharmaceutical Bulletin. 34:4859-4861
4-Acetylamino-2-hydroxylaminotoluene (4AA2HAT) and 2-hydroxylamino-6-nitrotoluene (2HA6NT) were prepared from 4-acetylamino-2-nitrotoluene (4AA2NT) and 2, 6-dinitrotoluene (2, 6-DNT), respectively, by reduction with zinc dust and NH4Cl. 2, 6-Dinitrob