Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Charles H. Phoebe"'
Publikováno v:
Biochimica et Biophysica Acta (BBA) - General Subjects. 1472:509-518
Determination of amino acids in polymers with varying structure and charge was performed using vapor phase acid hydrolysis and subsequent precolumn derivatization with 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC). Percent load of neutral, ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62d8ad255e1f8a130cc3eeea111effa3
https://doi.org/10.1016/s0304-4165(99)00154-3
https://doi.org/10.1016/s0304-4165(99)00154-3
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
Publikováno v:
Journal of Heterocyclic Chemistry. 33:239-243
The roots of the indigenous West African shrub Cryptolepis sanguinolenta have proved to be a rich source of indoloquinoline alkaloids. To date, all of the alkaloids isolated have been analogs of indolo[3, 2-b]quinoline. We now wish to report examples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b108bf9856ef0e2c71a9ec21da440b2d
https://doi.org/10.1002/jhet.5570330204
https://doi.org/10.1002/jhet.5570330204
Autor:
John P. Shockcor, Layne Howard, Carol Meyers, Albert N. Tackie, Chad E. Hadden, Robert L. Johnson, Charles H. Phoebe, C. Webster Andrews, Maged H. M. Sharaf, Ronald C. Crouch, Susan K. Wrenn, Ann O. Davis, Gary E. Martin, Doug Minick, Paul L. Schiff
Publikováno v:
Magnetic Resonance in Chemistry. 33:767-778
Cryptolepis sanguinolenta (Lindl.) Schlechter (Asclepiadaceae), a shrub indigenous to West Africa, has been employed by traditional healers in the treatment of various fevers, including malaria. Column chromatography of the alkaloid fraction obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c4e3a652ee8f25bf4e08b7c798b1b97
https://doi.org/10.1002/mrc.1260331003
https://doi.org/10.1002/mrc.1260331003
Autor:
Ann O. Davis, Ronald C. Crouch, Gary E. Martin, Paul L. Schiff, Albert N. Tackie, Charles H. Phoebe, C. Webster Andrews, Maged H. M. Sharaf
Publikováno v:
Journal of Heterocyclic Chemistry. 32:1631-1636
The structure of a new indolobenzazepine alkaloid, homocryptolepinone, isolated from extracts of the roots of the indigenous Ghanaian medicinal plant Cryptolepis sanguinolenta, is reported. The structure was determined using mass spectrometric, one-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffb61f2603f913d3d5c24542b3a40204
https://doi.org/10.1002/jhet.5570320537
https://doi.org/10.1002/jhet.5570320537
Publikováno v:
Journal of chromatography. A. 925(1-2)
In reversed-phase chromatography, the retention of ionizable analytes is influenced by the ionic properties of the packing caused by surface silanol groups. We have measured the ion-exchange properties of both reversed-phase bonded phases and their u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b5e781b655b0fd97444a739b62cf189
https://pubmed.ncbi.nlm.nih.gov/11519817
https://pubmed.ncbi.nlm.nih.gov/11519817
Autor:
Albert N. Tackie, Charles H. Phoebe, Russell H. Robins, Maged H. M. Sharaf, Gary E. Martin, Chad E. Hadden, Paul L. Schiff, Jane E. Guido
Publikováno v:
Journal of natural products. 62(2)
A new alkaloid has been isolated from extracts of the West African plant Cryptolepis sanguinolenta and identified by submicro NMR techniques as 11-isopropylcryptolepine (1). The unusual incorporation of the isopropyl group at the 11-position of the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98237deefef1a8a83ddc3388ea8f8456
https://pubmed.ncbi.nlm.nih.gov/10075749
https://pubmed.ncbi.nlm.nih.gov/10075749
Publikováno v:
SPIE Proceedings.
The determination of the biophysical properties of polysaccharides is becoming increasingly important in commercial and pharmaceutical applications. molecular weights distributions, conformations, and size distributions are obtainable through experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a41313dd97ccf167ff2327bb7cab637
https://doi.org/10.1117/12.274350
https://doi.org/10.1117/12.274350
Autor:
Charles H. Phoebe, Gerard P. Palace
Publikováno v:
Analytical biochemistry. 244(2)
Low-level (subanomole) determination of amino acids in samples of naturally derived polymeric carbohydrates has been demonstrated using vapor-phase acid hydrolysis and subsequent precolumn derivatization with 6-aminoquinolyl-N-hydroxysuccinimidyl car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d375be58dcc223b961d26ea44b5947e8
https://pubmed.ncbi.nlm.nih.gov/9025957
https://pubmed.ncbi.nlm.nih.gov/9025957
High-Performance Liquid Chromatography of Derivatized and Non-Derivatized Oligosaccharides: A Review
Autor:
Uwe D. Neue, Charles H. Phoebe
Publikováno v:
A Laboratory Guide to Glycoconjugate Analysis ISBN: 9783034873901
Abroad range of high-performance liquid chromatography (HPLC) techniques are available for the separation of oligosaccharides, which can be categorized in several different ways. We have chosen to divide the subject into two sections. The first secti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d92224357e733a66d716277da38e2034
https://doi.org/10.1007/978-3-0348-7388-8_1
https://doi.org/10.1007/978-3-0348-7388-8_1
