Results 211 to 220 of about 10,991 (259)
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The Analyst, 1937
The article on ergot in this Handbook (vol. II, 2, pp. 1297–1354) was written by Arthur Cushny in 1914 but not published until 1924, without further revision. Thus a gap of more than two decades has now to be filled. In this interval the number of known ergot alkaloids has increased from two to eleven or twelve, all crystalline, and a considerable ...
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The article on ergot in this Handbook (vol. II, 2, pp. 1297–1354) was written by Arthur Cushny in 1914 but not published until 1924, without further revision. Thus a gap of more than two decades has now to be filled. In this interval the number of known ergot alkaloids has increased from two to eleven or twelve, all crystalline, and a considerable ...
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Biogenetic interrelationships of ergot alkaloids
Archives of Biochemistry and Biophysics, 1961Abstract The biogenetic interconversions of clavine alkaloids have been studied by the use of clavine-C14 and clavine-H3 alkaloids labeled biosynthetically in saprophytic culture, and four different ergot strains in saprophytic cultures. Agroclavine was shown to be oxidized irreversibly to elymoclavine. The attack appears to be directly on the methyl
S, AGURELL, E, RAMSTAD
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Recent Investigations on Ergot Alkaloids
Chemical Reviews, 1950Ergot occupies a special position among the drugs of our therapeutic armamentarium, not only on account of its unusual classification in the vegetable kingdom but also because of its interesting biological characteristics and the remarkable nature of its active principles. Known botanically as Claviceps purpurea, ergot is a parasitic filamentous fungus
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ChemInform Abstract: ERGOT ALKALOIDS. 83. RADIOLABELED PEPTIDE ERGOT ALKALOIDS
Chemischer Informationsdienst, 1976AbstractDurch Verfütterung der verschieden markierten Tryptophane (I) hoher Aktivität, deren Darstellung beschrieben ist, an Kulturen von Claviceps paspali werden entsprechend markierte Paspalsäuren (II) [im 7 : 3‐Gemisch mit den isomeren Lysergsäuren (III)] gewonnen; durch basenkatalysierte Umlagerung sind auch aus (IIa)‐(IId) die radioaktiven ...
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Bioconversions of ergot alkaloids
1991Ergot alkaloids are very important pharmaceutical substances with wide medical use. Their bioproduction is usually followed by chemical modification. Bioconversions of ergot alkaloids on an industrial scale have become more important in recent years.
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Recent Advances in the Total Synthesis of the Tetrahydroisoquinoline Alkaloids (2002–2020)
Chemical Reviews, 2023Alexia N Kim, Brian M Stoltz
exaly