Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hitoshi Kagawa"'
Publikováno v:
Chemical and Pharmaceutical Bulletin. 53:547-554
We describe a facile efficient, and preparative approach for monohydroxyflavanone syntheses. Using this protocol, a hydroxyl is regio-selectively introduced at one carbon of a flavanone A- or B-ring per synthesis. The seven possible isomers were each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ccec9de183b28c557c117b4882804fd
https://doi.org/10.1248/cpb.53.547
https://doi.org/10.1248/cpb.53.547
Publikováno v:
Xenobiotica. 34:797-810
To clarify the metabolic pathways of flavanones in mammals, the metabolism of (+/-)-flavanone and (+/-)-4'-methoxyflavanone by rat liver microsomes and recombinant human P450s in which structural changes are readily identifiable were examined. The be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b866b91249f2c746221b30d546da5bb
https://doi.org/10.1080/00498250400005708
https://doi.org/10.1080/00498250400005708
Publikováno v:
Chemical and Pharmaceutical Bulletin. 52:953-956
Deuterium incorporation at the C-3 position of flavanones was achieved by treatment of flavanones and 2'-hydroxychalcones with D3PO4 and AcOD. We propose that the deuteration reaction mechanism for 2'-hydroxychalcones substrates is as follows. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4ae2837fa74b8b71e573f41c2fde3b
https://doi.org/10.1248/cpb.52.953
https://doi.org/10.1248/cpb.52.953
Autor:
Yoshihiro Harigaya, Hitoshi Kagawa, Xue-Long Sun, Hiroaki Takayanagi, Masayuki Onda, Xian Li, Yaeko Konda, Tomomitsu Sasaki
Publikováno v:
Journal of Heterocyclic Chemistry. 32:1531-1535
Two biflavones isolated from Taxus cuspidata were identified with ginkgetin (1) and sciadopitysin (2) which belong to C3′-C8 connected biflavones. The conformation of 2 in the solid state was determined by X-ray analysis and the conformations of 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5838c7ff5b8be02fd8da29afc1a397c
https://doi.org/10.1002/jhet.5570320521
https://doi.org/10.1002/jhet.5570320521
Publikováno v:
ChemInform. 22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b93191cc36a91a1130b2db2ad2a24eee
https://doi.org/10.1002/chin.199119107
https://doi.org/10.1002/chin.199119107
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41442f3488c5175462f7917a7deb39c9
https://doi.org/10.1002/chin.199220257
https://doi.org/10.1002/chin.199220257
Publikováno v:
Journal of Heterocyclic Chemistry. 27:2029-2035
Solvent effects on the stereochemistry in the sodium borohydride reduction of (±)-flavanonols have been examined. The effects observed for the (±)-flavanonols with 5-OMe in 2-propanol, dioxane and methanol are explainable by the differences between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418274543c0484072eda899c65378c0b
https://doi.org/10.1002/jhet.5570270734
https://doi.org/10.1002/jhet.5570270734
Publikováno v:
Journal of Heterocyclic Chemistry. 28:1845-1847
A total synthesis of optically pure (+)-catechin pentaacetate has been established using the (-)-chalcon epoxide (100% ee) derived from 3,4,2',4',6'-pentakis(methoxymethoxy)chalcon as the starting material. The optical purity of the product is confir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::384a08a140eeda912642a7127b557a2e
https://doi.org/10.1002/jhet.5570280807
https://doi.org/10.1002/jhet.5570280807
Publikováno v:
SPIE Proceedings.
The 780nm 35mW I2SPB lasers(Inverted Inner Stripe Laser with a p- GaAs Buffer Layer) with a thin active layer have been successflly developed by employing MOCVD. Accelerated aging tests on the ISPB lasers with the cavity length of 400iim at 60 °C, 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8563b04e112628a3534237b03025b016
https://doi.org/10.1117/12.18249
https://doi.org/10.1117/12.18249
Publikováno v:
ChemInform. 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d73c9687a822647a09129859c590df0
https://doi.org/10.1002/chin.199015164
https://doi.org/10.1002/chin.199015164