Výsledky vyhledávání - "Brian R. Worth"

Biosynthesis of the Indole Alkaloids. Cell-free Systems fromCatharanthus roseus Plants

Autor: Brian R. Worth, Norman G. Lewis, Toshio Honda, James P. Kutney, Kenneth L. Stuart, Lewis S. L. Choi, Toshitsugu Sato

Publikováno v: Helvetica Chimica Acta. 65:2088-2101

Cell-free systems from Catharanthus roseus plants are utilized for various studies relating to the biosynthesis of indole alkaloids. Tryptamine (5) and secologanin (6), two fundamental building units, are shown to be incorporated into the alkaloid vi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c788ddfec99e3354a1e61e35730711ca
https://doi.org/10.1002/hlca.19820650716

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Alkaloid production in Catharanthus roseus cell cultures: Initial studies on cell lines and their alkaloid content

Autor: Brian R. Worth, James P Kutney, Lewis S L Choi, Stephen K. Sleigh, Friedrich Constabel, K. B. Chatson, Pawel Kolodziejczyk, Wolfgang G. W. Kurz, Kenneth L. Stuart

Publikováno v: Phytochemistry. 19:2583-2587

Several hundred serially cultured cell suspensions derived from three cultivars of periwinkle ( Catharanthus roseus ) were established in Gamborg's B 5 medium and then transferred to Zenk's alkaloid production medium. Total alkaloid concentration ran

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a8749cca27dd9c6ea6063630fc4d9fe
https://doi.org/10.1016/s0031-9422(00)83923-0

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Dihydropyridines in synthesis and biosynthesis. III. Coupling of dihydropyridinetricarbonylchromium(0) complexes: bipyridyls

Autor: Lucas Kaczmarek, James P. Kutney, Danuta Mostowicz, Brian R. Worth

Publikováno v: Canadian Journal of Chemistry. 60:323-326

Reaction of 1,2- and 1,6-dihydro-3-ethyl-N-methyl pyridine tricarbonylchromium(0) complexes with methyllithium at low temperature afforded a high yield of dimeric tricarbonylchromium(0) complexes. Structures of the latter products were established by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::392fe9d73a6674581cb281ed8b1e37b5
https://doi.org/10.1139/v82-049

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Alkaloid production in Catharanthus roseus cell cultures: Isolation and characterization of alkaloids from one cell line

Autor: Friedrich Constabel, K. B. Chatson, Kenneth L. Stuart, W. G. W. Kurz, Pawel Kolodziejczyk, James P. Kutney, Brian R. Worth, Lewis S. L. Choi, Stephen K. Sleigh

Publikováno v: Phytochemistry. 19:2589-2595

A detailed study of one cell line (coded as 943) of Catharanthus roseus cell cultures has revealed the presence of the following alkaloids: ajmalicine, vallesiachotamine, horhammerinine, horhammericine, vindolinine, 19- epi - vindolinine, 19-acetoxy-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed9f39d018b8bfd970d15f7dfddaca7c
https://doi.org/10.1016/s0031-9422(00)83924-2

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Alkaloid Production inCatharanthusroseus Cell Cultures. IV. Characterization of the 953 Cell Line

Autor: Friedrich Constabel, Pawel Kolodziejczyk, James P. Kutney, Lewis S. L. Choi, Wolfgang G. W. Kurz, Kenneth L. Stuart, K. B. Chatson, Stephen K. Sleigh, Brian R. Worth

Publikováno v: Helvetica Chimica Acta. 63:1891-1896

The 953 cell line, one of the cell lines from Catharanthus roseus, has been investigated in terms of its ability to produce indole alkaloids. Various parameters (mitotic index, pH, cell dry weight, growth period) were evaluated in the fermentation pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::beb54274c0371530eb40b8672c4328b7
https://doi.org/10.1002/hlca.19800630714

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Autor: Gary M. Hewitt, Brian R. Worth, Phillip J. Salisbury, R. Gordon, Dennis W. Martens, James A. Servizi, James P. Kutney, Mahatam Singh

Publikováno v: Canadian Journal of Chemistry. 59:2334-2341

A study related to biological detoxification of kraft pulp mill effluent is presented. A series of fungal and bacterial preparations were evaluated for their action on dehydroabietic acid (DHA), one of the effluent constituents toxic to fish. Mortier

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f74027d7b133514d6f935459e83fa886
https://doi.org/10.1139/v81-337

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Isolation and characterization of natural products from plant tissue cultures of Maytenus buchananii

Autor: Kristina Nilsson, Michael H. Beale, William T. Chalmers, James P. Kutney, Phillip M. Townsley, Giullo G. Jacoli, Brian R. Worth, Kenneth L. Stuart, Phillip J. Salisbury

Publikováno v: Phytochemistry. 20:653-657

Explants of Maytenus buchananii were induced to form a callus aid subsequently to form suspension cultures on a wide variety of media. Culture extracts showed cytotoxic activity, but examination by TLC did not indicate the presence of maytansine. Iso

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https://doi.org/10.1016/0031-9422(81)85151-5

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Dihydropyridines in synthesis and biosynthesis. II. Stable tricarbonylchromium(0) complexes

Autor: James P. Kutney, Brian R. Worth, Masaki Noda, Ying Hung So, Robert Greenhouse, A. Zanarotti, William R. Cullen, Vicente E. Ridaura-Sanz, Rodney A. Badger

Publikováno v: Canadian Journal of Chemistry. 57:300-303

Controlled reduction of N-methyl-3-ethylpyridinium iodide afforded the corresponding 1,2-dihydropyridine which was stabilised by complexation to give 1,2- and 1,6-dihydro-3-ethyl-N-methylpyridinetricarbonylchromium(0). These stable, isomeric complexe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75b18d4ef638fbca2226d197362cbccf
https://doi.org/10.1139/v79-049

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