Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Paul L. Schiff"'
Autor:
Josep Saurí, Edward C. Sherer, Gary E. Martin, Wolfgang Bermel, Alexei V. Buevich, Teodor Parella, Paul L. Schiff, Leo A. Joyce, Maged H. M. Sharaf, R. Thomas Williamson
Publikováno v:
Angewandte Chemie International Edition. 54:10160-10164
Cryptospirolepine is the most structurally complex alkaloid discovered and characterized thus far from any Cryptolepis specie. Characterization of several degradants of the original, sealed NMR sample a decade after the initial report called the vali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::753f3fbd49431ba389ae0d2937a0b3cc
https://doi.org/10.1002/anie.201502540
https://doi.org/10.1002/anie.201502540
Autor:
Bruce A. Stiemsma, Antony J. Williams, Eduard R. Martirosian, Thomas J. Thamann, Sergey G. Molodtsov, Gary E. Martin, David J. Russell, Brian D. Kaluzny, Paul L. Schiff, Chad E. Hadden, Ronald C. Crouch, Kirill A. Blinov, Mikhail E. Elyashberg, Jane E. Guido, Wayne K. Duholke
Publikováno v:
Journal of Heterocyclic Chemistry. 39:1241-1250
Identification of degradants of pharmaceuticals is a necessary challenge of the drug development process following the subjection of candidate molecules to a variety of physico-chemical stresses. It would be desirable to be able to conduct such studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3e43caa8b71528baa159a9d497e9d1
https://doi.org/10.1002/jhet.5570390619
https://doi.org/10.1002/jhet.5570390619
Publikováno v:
Journal of Herbal Pharmacotherapy. 2:1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2a4cf161cb57cb007e0ea2383ed4ae9
https://doi.org/10.1080/j157v02n02_01
https://doi.org/10.1080/j157v02n02_01
Autor:
Gary E. Martin, Fu-Tyan Lin, Paul L. Schiff, Tawfeq A. Al-Howiriny, Cong-Yuan Gao, Chad E. Hadden, Michael A. Zemaitis
Publikováno v:
Journal of Natural Products. 64:823-826
A direct comparison of the spectral data for synthetic 2-methyl-6,7-dimethoxy-3'-methoxy-4'-hydroxyoxobenzylisoquinoline iodide (1) and its positional isomer 2-methyl-6,7-dimethoxy-3'-hydroxy-4'-methoxyoxobenzylisoquinoline iodide (2) with the data o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18e96f5c40115eb9536e542e87b0a728
https://doi.org/10.1021/np0101200
https://doi.org/10.1021/np0101200
Autor:
V. Srini Srinivasan, Paul L. Schiff
Publikováno v:
Journal of Herbal Pharmacotherapy. 1:1-29
The USP Sub com mit tee on Natural Prod ucts was formed in the summer of 1995. Its principal charge was to explore the feasibility and advisability of establishing standards (monographs) for botanical dietary suppiements. This paper describes the wor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4239bdd12ea51b3485637de61218cda4
https://doi.org/10.1080/j157v01n04_01
https://doi.org/10.1080/j157v01n04_01
Publikováno v:
Magnetic Resonance in Chemistry. 37:529-537
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59be2a4b4b910450ff07784cd5adb2e1
https://doi.org/10.1002/(sici)1097-458x(199908)37:8<529::aid-mrc486>3.0.co
https://doi.org/10.1002/(sici)1097-458x(199908)37:8<529::aid-mrc486>3.0.co
Autor:
Paul L. Schiff, Wayne K. Duholke, Russell H. Robins, Chad E. Hadden, Jane E. Guido, Gary E. Martin, Maged H. M. Sharaf
Publikováno v:
Journal of Heterocyclic Chemistry. 36:525-531
The nmr analysis of a mixture of cryptolepinone and it's 5(N)-oxide in a 1.5:1 ratio is discussed. The differentiation of the resonances of the two similar compounds, and elucidation of the unknown 5(N)-oxide relied primarily on IDR-GHSQC-TOCSY data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::316fe60fffca8921cdf35070de4870b3
https://doi.org/10.1002/jhet.5570360232
https://doi.org/10.1002/jhet.5570360232
Autor:
Maged H. M. Sharaf, Albert N. Tackie, James R. Blinn, Gary E. Martin, Paul L. Schiff, Chad E. Hadden
Publikováno v:
Magnetic Resonance in Chemistry. 37:1-6
Direct and long-range 1H–15N correlations for cryptolepinone and its N5-oxide as a mixture in DMSO-d6 were determined using a combination of 1H–15N GHSQC and GHMBC experiments. The 15N chemical shifts of cryptolepinone in the mixture were compara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a8fd284cc432bed1dca7590e2d56922
https://doi.org/10.1002/(sici)1097-458x(199901)37:1<1::aid-mrc391>3.0.co
https://doi.org/10.1002/(sici)1097-458x(199901)37:1<1::aid-mrc391>3.0.co
Publikováno v:
Journal of Heterocyclic Chemistry. 35:1365-1369
An indolo[3,2-b]quinoline alkaloid bearing an N-methyl substituent at N5, and an oxygen moiety at the 11-position has been variously described as both cryptolepinone and 11-hydroxycryptolepine by independent research groups. The structure of this alk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d09ae34c87ca514c9fc51c153e0fbf45
https://doi.org/10.1002/jhet.5570350624
https://doi.org/10.1002/jhet.5570350624
Autor:
Ronald C. Crouch, Gary E. Martin, Charles H. Phoebe, Doug Minick, Paul L. Schiff, Maged H. M. Sharaf, Robert L. Johnson, Albert N. Tackie, C. Webster Andrews
Publikováno v:
Journal of Heterocyclic Chemistry. 33:789-797
The isolation and structure determination of cryptomisrine, a novel indolo[3,2-b]quinoline dimeric alkaloid obtained from extracts of the roots of the Ghanaian medicinal plant Cryptolepis sanguinolenta is reported. The structure determination was mad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41fb1ac07b89b8ca933510497a3de584
https://doi.org/10.1002/jhet.5570330343
https://doi.org/10.1002/jhet.5570330343