Showing 141 - 160 results of 1,125 for search '"alkaloids"', query time: 0.06s Refine Results
  1. 141

    Asymmetric synthesis of Sedum alkaloids via lithium amide conjugate addition by Davies, S, Fletcher, A, Roberts, P, Smith, A

    Published 2009
    “…These homochiral templates are readily transformed to a range of piperidine alkaloids of the Sedum family, and the corresponding five-, seven- and eight-membered ring homologues. © 2009 Elsevier Ltd. …”
    Journal article
  2. 142
  3. 143

    Cytotoxicity Effects and Apoptosis Induction by Bisbenzylisoquinoline Alkaloids from Triclisia subcordata. by Uche, F, Drijfhout, F, McCullagh, J, Richardson, A, Li, W

    Published 2016
    “…A bisbenzylisoquinoline alkaloid-cycleanine was isolated using HPLC and identified by mass spectrometry and nuclear magnetic resonance analyses. …”
    Journal article
  4. 144

    Isolation of glycosidase-inhibiting hyacinthacines and related alkaloids from Scilla socialis. by Kato, A, Kato, N, Adachi, I, Hollinshead, J, Fleet, G, Kuriyama, C, Ikeda, K, Asano, N, Nash, R

    Published 2007
    “…Alkaloids 13 and 14 were shown to be inhibitory toward mammalian alpha-glucosidase (IC50 = 45 and 77 microM, respectively), and alkaloid 14 was demonstrated as a moderate inhibitor of bacterial beta-glucosidase (IC50 = 48 microM).…”
    Journal article
  5. 145

    New polyhydroxylated pyrrolidine, piperidine, and pyrrolizidine alkaloids from Scilla sibirica. by Yamashita, T, Yasuda, K, Kizu, H, Kameda, Y, Watson, A, Nash, R, Fleet, G, Asano, N

    Published 2002
    “…Chromatographic separation of an extract of the bulbs of Scilla sibirica resulted in the isolation of five pyrrolidines, two pyrrolidine glycosides, six piperidines, one piperidine glycoside, and eight pyrrolizidines. 2,5-Dideoxy-2,5-imino-glycero-d-manno-heptitol (homoDMDP, 1) is a common alkaloid in all plants of the Hyacinthaceae examined to date and was also found in S. sibirica. …”
    Journal article
  6. 146

    Iteamine, the first alkaloid isolated from Itea virginica L. inflorescence. by Ayers, B, Hollinshead, J, Saville, A, Nakagawa, S, Adachi, I, Kato, A, Izumori, K, Bartholomew, B, Fleet, G, Nash, R

    Published 2014
    “…Iteamine, o-aminobenzyl β-D-glucopyranoside, is the first alkaloid to be isolated from Itea virginica. Itea is the sole plant source of D-psicose, a rare sugar likely to be a major dietary supplement. …”
    Journal article
  7. 147

    A short biomimetic synthesis of marine sponge alkaloid Pyrinadine A by Anwar, M, Lee, V

    Published 2009
    “…The biomimetic synthesis of the marine sponge alkaloid Pyrinadine A, based on the oxidative dimerisation of hydroxylamine, is reported. © 2009 Elsevier Ltd. …”
    Journal article
  8. 148
  9. 149

    Investigations of an annulation-fragmentation-spirocyclisation approach to fawcettimine-type Lycopodium alkaloids by Seah, KY, Robertson, J

    Published 2019
    “…This paper reports progress in the development of a furan oxidative N-spirocyclisation approach to the fawcettimine alkaloids huperzine Q and lycopladine D. A short synthesis is described of a key intermediate cyclopentaindolizidine that subsequently fragments by N-acylation and β-elimination. …”
    Journal article
  10. 150
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  13. 153

    Macroline–sarpagine and macroline–pleiocarpamine bisindole alkaloids from Alstonia angustifolia by Kam, Toh Seok, Tan, S.J., Lim, K.H., Subramaniam, G.

    Published 2012
    “…Nine bisindole alkaloids, comprising four belonging to the macroline–sarpagine group, and five belonging to the macroline–pleiocarpamine group, were isolated from the stem-bark extracts of Alstonia angustifolia(Apocynacea). …”
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    Article
  14. 154

    Acridone alkaloids from Glycosmis chlorosperma as DYRK1A inhibitors by Beniddir, M.A.A., Le Borgne, E.A., Iorga, B.L.A., Loaëc, N.B.C., Lozach, O.B., Meijer, L.B.C., Awang, K.D., Litaudon, M.A.

    Published 2014
    “…Two new acridone alkaloids, chlorospermines A and B (1 and 2), were isolated from the stem bark of Glycosmis chlorosperma, together with the known atalaphyllidine (3) and acrifoline (4), by means of bioguided isolation using an in vitro enzyme assay against DYRK1A. …”
    Article
  15. 155
  16. 156

    Bisleucocurine A, a novel bisindole alkaloid from Leuconotis griffithii by Nugroho, A.E., Hirasawa, Y., Hosoya, T., Awang, K., Hadi, A.H.A., Morita, H.

    Published 2010
    “…A novel bisindole alkaloid, bisleucocurine A (1), consisting of two strychnan skeletons with an N-1-C-17' and a C-12-C-2' bridges, was isolated from the leaves of Leuconotis griffithii and the structure was elucidated on the basis of spectroscopic data. …”
    Article
  17. 157

    Bisleuconothine A, an eburnane-aspidosperma bisindole alkaloid from Leuconotis griffithii by Hirasawa, Y., Shoji, T., Arai, T., Nugroho, A.E., Deguchi, J., Hosoya, T., Uchiyama, N., Goda, Y., Awang, K., Hadi, A.H.A., Shiro, M., Morita, H.

    Published 2010
    “…A new bisindole alkaloid, bisleuconothine A(1) consisting of an eburnane-aspidosperma type skeleton, was isolated from the bark of Leuconotis griffithii. …”
    Article
  18. 158

    Neolamarckines A and B, New Indole Alkaloids from Neolamarckia cadamba. by Qureshi, Ahmad Kaleem, Mukhtar, Mat Ropi, Hirasawa, Yusuke, Hosoya, Takahiro, Nugroho, Alfarius Eko, Morita, Hiroshi, Shirota, Osamu, Mohamad, Khalit, A. Hadi, A. Hamid, Litaudon, M., Awang, Khalijah

    Published 2011
    “…Two new indole alkaloids, neolamarckines A and B (1, 2) were isolated from the leaves of Neolamarckia cadamba (Rubiaceae). …”
    Article
  19. 159

    Alkaloids from Cryptocarya densiflora Blume (Lauraceae) and their cholinesterase inhibitory activity by Wan Othman, Wan Nurul Nazneem, Sivasothy, Yasodha, Liew, Sook Yee, Mohamad, Jamaludin, Nafiah, Mohd Azlan, Ahmad, Kartini, Litaudon, Marc, Awang, Khalijah

    Published 2017
    “…(−)-Desmethylsecoantofine N-oxide (1), a new seco-phenanthroindolizidine alkaloid along with prodensiflorins A and B (2-3), two new proaporphine alkaloids, were isolated from the leaves of Cryptocarya densiflora Blume. …”
    Article
  20. 160

    Macroline–Sarpagine Bisindole Alkaloids with Antiproliferative Activity from Alstonia penangiana by Yeap, Joanne Soon Yee, Saad, Hazwani Mat, Tan, Chun Hoe, Sim, Kae Shin, Lim, Siew Huah, Low, Yun Yee, Kam, Toh Seok

    Published 2019
    “…A methanol extract of the stem bark of the Malayan Alstonia penangiana provided seven new bisindole alkaloids, comprising six macroline-sarpagine alkaloids (angustilongines E-K, 1-6) and one macroline-pleiocarpamine bisindole alkaloid (angustilongine L, 7). …”
    Article