Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ulrich Hollstein"'
Autor:
Hülya Akgün, Ulrich Hollstein
Publikováno v:
Organic Mass Spectrometry. 25:289-290
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::865f5af8b0ba2c57f4d852a8ba263c41
https://doi.org/10.1002/oms.1210250509
https://doi.org/10.1002/oms.1210250509
Autor:
Ulrich Hollstein, Eberhard Breitmaier
Publikováno v:
The Journal of Organic Chemistry. 41:2104-2108
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::894a067a3a6dd5688f03fe24967f0ed5
https://doi.org/10.1021/jo00874a008
https://doi.org/10.1021/jo00874a008
Publikováno v:
Organic Magnetic Resonance. 11:137-142
Carbon-13 NMR data for 15 substituted 1,2,4-triazol-3-ones are presented and discussed with regard to enolization in the neutral molecules. The coupling constant and chemical shift data show that the proton at N-2 is not exchanging rapidly in the DMS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16ff41733961a9b0a2a447aa229f713b
https://doi.org/10.1002/mrc.1270110309
https://doi.org/10.1002/mrc.1270110309
Publikováno v:
Tetrahedron Letters. 19:2987-2990
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d3f345b9f9e4ad3e8842695cf02d22
https://doi.org/10.1016/s0040-4039(01)94919-6
https://doi.org/10.1016/s0040-4039(01)94919-6
Synthesis of Some Substituted Quinazolinediones as Potential Inhibitors of Smooth Muscle Contraction
Publikováno v:
Journal of Pharmaceutical Sciences. 77:735-739
3-Substituted 2, 4(1 H, 3H)-quinazolinediones were prepared from the corresponding N-substituted 2-aminobenzamides by treatment with ethyl chloroformate and KOH in ethanol. Also, a series of 3-substituted and 1-methyl-3-substituted 2, 4(1 H, 3H)-quin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::125273f94397b5642622debb94cb736e
https://doi.org/10.1002/jps.2600770902
https://doi.org/10.1002/jps.2600770902
Autor:
E. Paul Papadopoulos, Ulrich Hollstein
Publikováno v:
Organic Magnetic Resonance. 19:188-191
The 13C NMR spectra of several 2-substituted imidazoles and benzimidazoles have been measured. The substituent was CH3, COOH and CONHR, where R = H, n-Bu, p-tolyl or m-chlorophenyl. Carbons 4 and 5 in the imidazoles and the carbon pairs 8/9, 4/7 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1451e096ae534691ef5f30ecdaed90b4
https://doi.org/10.1002/mrc.1270190406
https://doi.org/10.1002/mrc.1270190406
Publikováno v:
Journal of the American Chemical Society. 96:8036-8040
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bd466125704f5e6f24386a409659eb7
https://doi.org/10.1021/ja00833a033
https://doi.org/10.1021/ja00833a033
Publikováno v:
Biology of Reproduction. 33:309-315
Crude aqueous extracts of the plant Lithospermum ruderale have been shown to have antigonadotropic activity that resides in its polyphenolic fractions. This study examined the ability of one such polyphenol, lithospermic acid (LA), and its oxidation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fc98c9444df996bf18297db79e2d09c
https://doi.org/10.1095/biolreprod33.2.309
https://doi.org/10.1095/biolreprod33.2.309
Publikováno v:
Tetrahedron Letters. 17:3267-3270
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84c11306f7106c699309f264fb86c0bb
https://doi.org/10.1016/s0040-4039(00)93898-x
https://doi.org/10.1016/s0040-4039(00)93898-x
Publikováno v:
Chemico-Biological Interactions. 60:67-84
Cyclic voltammetry data were obtained for eight phenazines and phenazine-N-oxides, and eleven quinoxalines and quinoxaline-N-oxides: 1,6-phenazine-diol-5,10-dioxide (iodinin), iodinin copper complex, 6-methoxy-1-phenazinol-5,10-dioxide 1,6-dimethoxyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9af6ed20f8a1a2a532d1ff6efa96547b
https://doi.org/10.1016/0009-2797(86)90018-9
https://doi.org/10.1016/0009-2797(86)90018-9