Showing 321 - 340 results of 7,210 for search '"alkaloid"', query time: 0.11s Refine Results
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    Silencing of tryptamine biosynthesis for production of nonnatural alkaloids in plant culture by O'Connor, Sarah Ellen, Maresh, Justin J., Runguphan, Weerawat

    Published 2010
    “…To exploit this chemically silent background, we introduced an unnatural tryptamine analog to the production media and demonstrated that the silenced plant culture could produce a variety of novel products derived from this unnatural starting substrate. The novel alkaloids were not contaminated by the presence of the natural alkaloids normally present in C. roseus. …”
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    Antinociceptive effects of alkaloids rich fraction of aidia densiflora in mice by Soib, Husnul Hanani, Wan Sulaiman, Wan Mohd. Azizi, Darnis, Deny Susanti, Tg Zakaria, Tg Muhammad Faris Syafiq, Edueng, Khadijah, Bakhtiar, M. Taher

    Published 2014
    “…Four groups of mice were separated and treated with alkaloids extract from AD at increasing doses of 100, 200, 500, 1000 mg/kg. …”
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    Article
  8. 328

    Isolation of the pyrrolizidine alkaloid 1-epialexine from Castanospermum australe by Jones, L, Hollinshead, J, Fleet, G, Thompson, A, Watkin, D, Gal, Z, Jenkinson, S, Kato, A, Nash, R

    Published 2010
    “…The Australian leguminous tree Castanospermum australe contains the anti-viral glucose analogue indolizidine alkaloid castanospermine. As the result of a search for new bioactive carbohydrate-like compounds we now report the isolation of the novel polyhydroxylated pyrrolizidine alkaloid, 1-epialexine, from the leaves and stems of C. australe. 1-Epialexine is a weak inhibitor of β-mannosidase from Cellullomonas fimi. © 2010 Phytochemical Society of Europe.…”
    Journal article
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    Investigation into the absolute stereochemistry of the marine sponge alkaloid pyrinodemin A by Romeril, S, Lee, V, Baldwin, J, Claridge, T, Odell, B

    Published 2003
    “…The absolute configuration of the marine sponge alkaloid pyrinodemin A is established by organic synthesis. © 2003 Elsevier Ltd. …”
    Journal article
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    Bifunctional organo/metal cooperative catalysis with cinchona alkaloid scaffolds by Stegbauer, L, Sladojevich, F, Dixon, D

    Published 2012
    “…This review discusses recent developments (the last 10 years) in the field of cooperative catalysis using cinchona alkaloid derivatives in combination with metal ions, highlighting the potential of this new research area and the many challenges that still remain for the future. …”
    Journal article
  14. 334

    Steviamine, a new indolizidine alkaloid from Stevia rebaudiana by Michalik, A, Hollinshead, J, Jones, L, Fleet, G, Yu, C, Hu, X, van Well, R, Horne, G, Wilson, F, Kato, A, Jenkinson, S, Nash, R

    Published 2010
    “…This is the first report of an indolizidine iminosugar alkaloid from the Asteraceae and Hyacinthaceae. Steviamine may occur in some Stevia products and influence taste. © 2010 Phytochemical Society of Europe.…”
    Journal article
  15. 335

    Total synthesis of cytotoxic sponge alkaloids hachijodines F and G by Goundry, W, Lee, V, Baldwin, J

    Published 2002
    “…The total synthesis of two cytotoxic sponge alkaloids hachijodines F (1) and G (2) via a common intermediate 3 is described. © 2002 Elsevier Science Ltd. …”
    Journal article
  16. 336

    Asymmetric syntheses of the homalium alkaloids (-)-(S,S)-homaline and (-)-(R,R)-hopromine. by Davies, S, Lee, J, Roberts, P, Stonehouse, J, Thomson, J

    Published 2012
    “…The highly diastereoselective conjugate additions of the novel lithium amide reagents lithium (R)-N-(3-chloropropyl)-N-(α-methylbenzyl)amide and lithium (R)-N-(3-chloropropyl)-N-(α-methyl-p-methoxybenzyl)amide to α,β-unsaturated esters were used as the key steps in syntheses of the homalium alkaloids (-)-(S,S)-homaline and (-)-(R,R)-hopromine. …”
    Journal article
  17. 337

    Strategies towards the synthesis of calyciphylline A-type Daphniphyllum alkaloids. by Kang, B, Jakubec, P, Dixon, D

    Published 2014
    “…The Daphniphyllum alkaloids are a diverse family of natural products rich in number and structural diversity that have been known for many decades. …”
    Journal article
  18. 338

    GLYCOSIDASE INHIBITION BY PLANT ALKALOIDS WHICH ARE STRUCTURAL ANALOGS OF MONOSACCHARIDES by Evans, S, Fellows, L, Shing, T, Fleet, G

    Published 1985
    “…]The inhibitory activities of three plant alkaloids, deoxynojirimycin, 2,5-dihydroxymethyl-3,4-dihydroxypyrrolidine and 1,5 dideoxy-1,5-imino-D-mannitol towards glycosidases from several sources have been compared. …”
    Journal article
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    Total synthesis of cytotoxic sponge alkaloids Motuporamines A and B by Baldwin, J, Vollmer, H, Lee, V

    Published 1999
    “…The synthesis of two sponge alkaloids, Motuporamines A and B is reported. The key step involved a reductive amination using sodium triacetoxyborohydride.…”
    Journal article
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    Total synthesis of cytotoxic sponge alkaloids hachijodines F and G by Goundry, W, Baldwin, J, Lee, V

    Published 2003
    “…The total synthesis of two cytotoxic sponge alkaloids hachijodines F and G has been achieved. The synthesis of both compounds utilises a common intermediate alkyne. …”
    Journal article