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In vitro and in vivo studies on anti-withdrawal properties of Erythroxylum cuneatum (Miq.) Kurz leaf alkaloid extract
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Angustilobine and andranginine type indole alkaloids and an uleine–secovallesamine bisindole alkaloid from Alstonia angustiloba
Published 2011“…One is an alkaloid of the angustilobine type (angustilobine C), while the other is a bisindole alkaloid angustiphylline, derived from the union of uleine and secovallesamine moieties. …”
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Total Synthesis of Oligomeric Cyclotryptamine Alkaloids
Published 2023“…The application of our diazene-directed assembly of enantiomerically enriched cyclotryptamines afforded a highly convergent synthesis of the pentameric alkaloid, allowing its detailed structural assignment. …”
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Studies on the synthesis of bisindole Aspidosperma alkaloids
Published 2024“…Introduction and Background on Aspidosperma Alkaloids A brief overview of monoterpene indole Aspidosperma alkaloids is discussed. …”
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Total synthesis of cyclotryptamine and diketopiperazine alkaloids
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27
Total synthesis and study of myrmicarin alkaloids
Published 2013“…The myrmicarins are a family of air- and temperature-sensitive alkaloids that possess unique structural features. …”
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Total synthesis of all (−)-agelastatin alkaloids
Published 2013“…The pyrrole-imidazole family of marine alkaloids, derived from linear clathrodin-like precursors, constitutes a diverse array of structurally complex natural products. …”
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Synthesis and anticancer activity of epipolythiodiketopiperazine alkaloids
Published 2015“…The epipolythiodiketopiperazine (ETP) alkaloids are a highly complex class of natural products with potent anticancer activity. …”
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Studies on the biomimetic synthesis of the manzamine alkaloids
Published 1999“…The biomimetic synthesis of the manzamine-related alkaloid keramaphidin B is described. The key intramolecular Diels-Alder reaction proposed in the Baldwin and Whitehead hypothesis is demonstrated. …”
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Complexity-generating reactions and the synthesis of alkaloids
Published 2016“…<p>This thesis describes attempts to apply the furan oxidative <em>N</em>-spirocyclisation methodology to the synthesis of three alkaloids, namely pandamarilactone-1, lycopladine D and hederacine B.…”
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A biomimetic approach to the manzamine alkaloids
Published 1997“…The manzamines are a newly discovered class of marine alkaloids, many ni" which display interesting cytotoxic, antibacterial and antifungal properties. …”
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Flexible strategy for the synthesis of pyrrolizidine alkaloids.
Published 2008“…A general strategy for the production of pyrrolizidine alkaloids is described, starting from intermediate (+)-9. …”
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A biomimetic approach to the manzamine alkaloids
Published 1996“…Results from model studies of a synthetic approach to the manzamine alkaloids based on a biogenetic theory are reported together with the synthesis of a plausible biogenetic precursor to these alkaloids.…”
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Structural revision of the Hancock alkaloid (-)-galipeine
Published 2017“…The 1H and 13C NMR data of synthetic samples of (S)-N(1)-methyl-2-[2'-(3″-hydroxy-4″-methoxyphenyl)ethyl]-1,2,3,4-tetrahydroquinoline, the originally proposed structure of the Hancock alkaloid (-)-galipeine, do not match those of the natural product. …”
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Catalytic divergent synthesis of quinazolinone alkaloids
Published 2019“…<p>The general goal of this thesis was to implement a new, catalytic, enantioselective isocyanoacetate ketone aldol reaction into a challenging total synthesis plan, in order to achieve a catalyst controlled stereoselective total synthesis of a specific subset of quinazolinone alkaloids - tryptoquivalines and chaetominine.</p> <p><b>Chapter 1</b> firstly introduces the panorama of quinazolinone alkaloids and pioneering synthetic achievements on tryptoquivalines and chaetominines. …”
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Investigations into the manzamine alkaloid biosynthetic hypothesis
Published 1998“…The biomimetic synthesis of a pentacyclic alkaloid (keramaphidin B, 1), an intermediate in the biogenetic pathway to the manzamine alkaloids, has been achieved. …”
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New alkaloids from Phoebe scortechinii
Published 2007“…The proaporphine, tetrahydropronuciferine(2), was isolated for the first time as a natural product. The alkaloids were elucidated primarily by means of high field NMR and HRMS…”
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Sesquiterpenes and alkaloids from Scorodocarpus borneensis
Published 2001“…The structures of the new compounds were elucidated by interpretation of spectral data, especially tandem mass spectrometry for the alkaloid mixture.…”
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