Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Hiroshi Hanazono"'
Autor:
Yoshinobu Goto, Hideaki Tsunematsu, Hirohito Ikeda, Ryuichi Higuchi, Ryuichi Isobe, Hiroshi Hanazono, Masanori Inagaki, Magobei Yamamoto
Publikováno v:
Journal of Mass Spectrometry. 38:188-195
The fragmentation of the sodium adduct ions for tert-butoxycarbonyl-L-prolyl-L-proline ethyl ester (Boc-L-Pro-L-Pro-OEt) was compared with that for Boc-D-Pro-L-Pro-OEt in positive-ion electrospray ionization (ESI) mass spectrometry. In the collision-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::016b0fbf01b8044a3752656a6b22039a
https://doi.org/10.1002/jms.428
https://doi.org/10.1002/jms.428
Autor:
Ryuichi Higuchi, Naofumi Ito, Magobei Yamamoto, Hideaki Tsunematsu, Masanori Inagaki, Ryuichi Isobe, Yasuko Soeda, Hiroshi Hanazono
Publikováno v:
Chemical and Pharmaceutical Bulletin. 47:1040-1043
The effect of Na+ ions on the fragmentation of tertiarybutoxycarbonyl (Boc) protected prolylproline (Pro-Pro) diastereomers, Boc-Pro-Pro and Boc-D-Pro-Pro, was studied in positive-ion fast atom bombardment (FAB) and tandem mass spectrometry. The form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b4e241471cc891bfdf4dbaff3663572
https://doi.org/10.1248/cpb.47.1040
https://doi.org/10.1248/cpb.47.1040
Publikováno v:
Organic Mass Spectrometry. 29:197-200
Fragmentations of N-benzyloxycarbonyl-protected tetrapeptide ethyl esters containing L-alanine and L-proline, in which changes in the numbers and positions of prolyl residues were observed, were studied by negative-ion fast atom bombardment mass spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c3016e1b60123686c0038397f2f32b9
https://doi.org/10.1002/oms.1210290407
https://doi.org/10.1002/oms.1210290407
Publikováno v:
Biological Mass Spectrometry. 22:703-706
Fragmentations between flurbiprofen-L-arginine diastereomers, flurbiprofen(S)-L-arginine and flurbiprofen (R)-L-arginine, were examined in both fast atom bombardment (FAB) and field desorption mass spectrometry. In negative ion FAB mass spectrometry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46a8fc61a93f06deadc88cb192938817
https://doi.org/10.1002/bms.1200221206
https://doi.org/10.1002/bms.1200221206
Autor:
Ryuichi Isobe, Masanori Inagaki, Hiroshi Hanazono, Magobei Yamamoto, Hideaki Tsunematsu, Ryuichi Higuchi
Publikováno v:
Journal of the Mass Spectrometry Society of Japan. 49:224-226
The formation and the fragmentation of the sodium adduct ions for tertiarybutoxycarbonyl-L-prolyl-L-proline ethyl ester (Boc-L-Pro-L-Pro-OEt) were compared with those for Boc-D-Pro-L-Pro-OEt on the addition of sodium chloride in positive-ion fast ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a5c16668b8076329a1ca6cbe79a1657
https://doi.org/10.5702/massspec.49.224
https://doi.org/10.5702/massspec.49.224
Autor:
Tetsuharu Iwata, Masatoshi Yamaguchi, Yosuke Ohkura, Yuki Imazato, Hiroshi Hanazono, Masaru Nakamura
Publikováno v:
Analytical Sciences. 6:361-366
A column-switching high performance liquid chromatographic method with fluorescence detection for the determination of vitamin D3 and 25-hydroxyvitamin D3 in human and rat sera is described. The vitamins in a lipid extract from serum, obtained by sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aba54a9052cf50d8bd0c4b74de2b8054
https://doi.org/10.2116/analsci.6.361
https://doi.org/10.2116/analsci.6.361
Publikováno v:
Chemicalpharmaceutical bulletin. 43(6)
A novel resin glycoside, merremin (1), has been isolated from the root of Merremia hungaiensis (Convolvulaceae). The structure has been determined to be an ester-type dimer of tuguajalapin X (2) on the basis of chemical and spectral data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f124e728c4d3f855cd8fcc93c10f9bb5
https://pubmed.ncbi.nlm.nih.gov/7641307
https://pubmed.ncbi.nlm.nih.gov/7641307
Publikováno v:
Chemicalpharmaceutical bulletin. 39(3)
From the herb of Luffa acutangula ROXB. (Cucurbitaceae), seven oleanane-type triterpene saponins, acutosides A--G, were isolated and their structures were determined. Acutoside A is oleanolic acid 3-O-beta-D-glucopyranosyl-(1----2)-beta-D-glucopyrano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9bda478e9e2c4b8c44ae77957c45e12
https://pubmed.ncbi.nlm.nih.gov/1863290
https://pubmed.ncbi.nlm.nih.gov/1863290
Publikováno v:
Analytical Sciences. 5:671-673
A simple, highly sensitive, high performance liquid chromatographic method with fluorescence detection for the determination of 7-dehydrocholesterol in human skin surface is described. 7-Dehydrocholesterol, extracted with hexane-ethanol (1:1, v/v) fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b33e84a54a42e2fe9c9d29be85590bb
https://doi.org/10.2116/analsci.5.671
https://doi.org/10.2116/analsci.5.671
Publikováno v:
Journal of chromatography. 491(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d071723b27c28e4a7e1ee4a7002f76b5
https://pubmed.ncbi.nlm.nih.gov/2808625
https://pubmed.ncbi.nlm.nih.gov/2808625