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9 results on '"Ungernia"'

2. Alkaloids from Hippeastrum papilio

Author

Jaume Bastida, José Angelo S. Zuanazzi, Carles Codina, Francesc Viladomat, Strahil Berkov, and Jean Paulo de Andrade

Subjects
Magnetic Resonance Spectroscopy, medicine.drug_class, Pharmaceutical Science, Article, Hippeastrum papilio, Analytical Chemistry, lcsh:QD241-441, Alkaloids, lcsh:Organic chemistry, Alzheimer Disease, Drug Discovery, Botany, Alcaloides, Liliaceae, medicine, Cholinesterases, Humans, galanthamine, 2D NMR, Physical and Theoretical Chemistry, 11β-hydroxygalanthamine, biology, Amaril·lidàcies, Galantamine, Plant Extracts, Hydrobromide, Amaryllidaceae, Organic Chemistry, Leucojum, Alzheimer's disease, Acetilcolinesterasa, biology.organism_classification, Narcissus, Plant Leaves, Malaltia d'Alzheimer, Acetylcholinesterase inhibitor, Chemistry (miscellaneous), Lycoris, Acetylcholinesterase, Molecular Medicine, Cholinesterase Inhibitors, Chromatography, Thin Layer, Ungernia
Abstract

Galanthamine, an acetylcholinesterase inhibitor marketed as a hydrobromide salt (Razadyne®, Reminyl®) for the treatment of Alzheimer's disease (AD), is obtained from Amaryllidaceae plants, especially those belonging to the genera Leucojum, Narcissus, Lycoris and Ungernia. The growing demand for galanthamine has prompted searches for new sources of this compound, as well as other bioactive alkaloids for the treatment of AD. In this paper we report the isolation of the new alkaloid 11β-hydroxygalanthamine, an epimer of the previously isolated alkaloid habranthine, which was identified using NMR techniques. It has been shown that 11β-hydroxygalanthamine has an important in vitro acetylcholinesterase inhibitory activity. Additionally, Hippeastrum papilio yielded substantial quantities of galanthamine.

Published
2011
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4. Ungernia victoris

Author

V. Botschantzev, V. Botschantzev, V. Botschantzev, and V. Botschantzev

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1115709%5DMICH-V-1115709, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1115709/MICH-V-1115709/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1930

5. Ungernia flava

Author

Walter N. Koelz, Walter N. Koelz, Walter N. Koelz, and Walter N. Koelz

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1492230%5DMICH-V-1492230, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1492230/MICH-V-1492230/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1941

6. Seed oils of Ungernia victoris

Author

T. V. Chernenko, A. U. Umarov, and S. A. Khamidkhodzhaev

Subjects
Perennial plant, biology, Chemistry, Botany, Plant Science, General Chemistry, biology.organism_classification, Ungernia, General Biochemistry, Genetics and Molecular Biology
Published
1975
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8. New alkaloids of Ungernia spiralis

Author

S. Yu. Yunusov, Kh. A. Kadyrov, and A. Abdusamatov

Subjects
biology, Chemistry, Botany, Plant Science, General Chemistry, biology.organism_classification, Ungernia, General Biochemistry, Genetics and Molecular Biology
Published
1977
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