Zobrazeno 1 - 10
of 10
pro vyhledávání: '"David N. B. Mallen"'
Publikováno v:
Biological Mass Spectrometry. 9:162-173
A crude extract from an ergot fermentation broth has been examined by high-performance liquid chromatography mass spectrometry (LC/MS). The [M + 1]+ ions formed from the mixture under chemical ionization conditions have also been studied using B/E li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e839b3d5d35f0ca159c223bb8027e3b4
https://doi.org/10.1002/bms.1200090407
https://doi.org/10.1002/bms.1200090407
Publikováno v:
Biological Mass Spectrometry. 5:449-452
The mass spectra of three stable isotope derivatives are presented to confirm ion assignments in the spectrum of the methoxime, trimethylsilyl ether, methyl ester from 15-oxo-13,14-dihydrothromboxane B2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d747bd1dcecd6568b73f97a2e8788c3e
https://doi.org/10.1002/bms.1200050706
https://doi.org/10.1002/bms.1200050706
Autor:
David M. Rackham, P.R. Shrubsall, David N. B. Mallen, S.R. Baker, Jane McKee Smith, S.E. Morgan, S.W. McKay, W.B. Jamieson, W.J. Ross
Publikováno v:
Journal of Chromatography A. 214:249-256
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6dc70696a1e8b202b67758d14f044c5
https://doi.org/10.1016/s0021-9673(00)98533-9
https://doi.org/10.1016/s0021-9673(00)98533-9
Publikováno v:
Biological Mass Spectrometry. 4:358-363
The mass spectra of eleven derivatives are presented to provide structural support for the recently discovered prostaglandin, 6-oxo-PGF1alpha, which we have isolated from incubations of arachidonic acid with ram seminal vesicles or released during is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2fceb776b06f2e8c293a1d08e193cea
https://doi.org/10.1002/bms.1200040607
https://doi.org/10.1002/bms.1200040607
Autor:
Julie M. Smith, David N. B. Mallen
Publikováno v:
Biological Mass Spectrometry. 9:125-129
Gas chromatography mass spectrometry was used to characterize compounds observed throughout the synthesis of a cis-fused 3′,4′-dichlorophenyl bicyclo-octane, a potential CNS acting drug substance. An ortho chloro-effect identified the isomeric 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45470a0e9f976a4eaad523dad1551a85
https://doi.org/10.1002/bms.1200090310
https://doi.org/10.1002/bms.1200090310
Autor:
David N. B. Mallen, Julie M. Smith
Publikováno v:
Biological Mass Spectrometry. 6:472-475
The mass spectral characteristics of a group of 1[(2-benzyl-4-thiazolyl)methyl]-4-phenylpiperazines are discussed, and the information used to determine the structure of an impurity, degradation product and aid the characterization of compounds synth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29f7b1aa91b37ea7cd1cc67c5decc53f
https://doi.org/10.1002/bms.1200061103
https://doi.org/10.1002/bms.1200061103
Electron impact induced fragmentations of 2-(2-nitroanilino)thiophens and Di(2-nitrophenyl)sulphides
Autor:
Julie M. Smith, David N. B. Mallen
Publikováno v:
Organic Mass Spectrometry. 14:171-176
A prominent ortho interaction occurs during the mass spectral fragmentation of di(2-nitrophenyl)sulphides. No such effects are observed for the corresponding ethers or 2-(2-nitroanilino)thiophens. Variation of aromatic substituents can dramatically a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a137d58be5d319a6ebf7551de9843fe
https://doi.org/10.1002/oms.1210140313
https://doi.org/10.1002/oms.1210140313
Autor:
David M. Rackham, Anthony F. Cockerill, Norman J. A. Gutteridge, David J. Osborne, David N. B. Mallen
Publikováno v:
Biological Mass Spectrometry. 4:187-189
The relatively rapid formation of pyrazoline adducts is a serious side reaction in the esterification of 15-oxo-PGF2alpha with ethereal diazomethane under conditions used routinely in the chemical derivatization of prostaglandins.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18815f32ebd5db4ceb6ab2b6cc3c62da
https://doi.org/10.1002/bms.1200040312
https://doi.org/10.1002/bms.1200040312
Publikováno v:
Journal of Agricultural and Food Chemistry. 24:1223-1225
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3fe0778f55d86cf1491d5e6d97fb8ec
https://doi.org/10.1021/jf60208a011
https://doi.org/10.1021/jf60208a011
Autor:
Steven A. Westwood, David E. Games, Michael S. Lant, Brian J. Woodhall, D. K. Scott, W. J. Irwin, E. S. Zai, J. J. Burger, E. Tomlinson, I. M. Beaumont, L. F. Lloyd, Christine Eckers, David N. B. Mallen, Brian P. Swann, B. V. Fisher, R. B. Raja
Publikováno v:
Analytical Proceedings. 19:121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3200b0bbfd73a896728967c9bb051024
https://doi.org/10.1039/ap9821900121
https://doi.org/10.1039/ap9821900121