Results 151 to 160 of about 18,858 (204)
Some of the next articles are maybe not open access.

Galanthamine

Drugs & Aging, 1996
Galanthamine is a selective acetylcholinesterase inhibitor which has shown potential for the treatment of Alzheimer's disease. Galanthamine is selective for acetylcholinesterase versus butyrylcholinesterase; however, the drug produces greater enzyme inhibition in human erythrocytes than in human brain tissue.
B, Fulton, P, Benfield
  +5 more sources

A general approach to the galanthamine ring system

open access: yesTetrahedron Letters, 2001
An approach to the galanthamine ring system is reported, which utilises an intramolecular Heck reaction to establish the benzofuran ring system present in both galanthamine and morphine.
Philip J Parsons, Adrian Shell
exaly   +1 more source

Effect of Fertilizers on Galanthamine and Metabolite Profiles in Narcissus Bulbs by 1H NMR

open access: yesJournal of Agricultural and Food Chemistry, 2011
Narcissus bulbs contain the biologically active alkaloid galanthamine, and Narcissus is being developed as a natural source of the molecule for the pharmaceutical industry.
Andrea Lubbe   +2 more
exaly   +3 more sources

Total Synthesis of (±)-Galanthamine

Organic Letters, 2006
[reaction: see text] A practical and efficient total synthesis of (+/-)-galanthamine was achieved from commercially available materials through a novel approach, in which the construction of its core structure and the special allylic alcohol group were based on a successive semipinacol rearrangement/desilyation/cyclization and Saegusa-Ito oxidation ...
Xiang-Dong, Hu   +7 more
openaire   +2 more sources

Cholinesterase inhibition by galanthamine and lycoramine

Biochemical Pharmacology, 1960
Abstract Galanthamine, a recently isolated alkaloid, has been found to inhibit the acetylcholinesterase of muscle and the cholinesterase of plasma and brain. The inhibition of the muscle enzyme by galanthamine is greater than that produced by pyridostigmin, a compound of known usefulness, but less than that of neostigmin.
R L, IRWIN, H J, SMITH
openaire   +2 more sources

Galanthamine treatment in Alzheimer’s disease

1991
18 patients who had fulfilled the NINCDS-ADRDA criteria for "possible AD" took part in a clinical study to evaluate the effect of the cholinesterase inhibitor Galanthamine, 30 mg/day. Neuropsychological und social parameters were rated. This open clinical pilot-study showed no statistic significant change in neuropsychological test-results.
P, Dal-Bianco   +8 more
openaire   +2 more sources

Syntheses of (‐)‐Galanthamine

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

An improved synthesis of galanthamine

Journal of Heterocyclic Chemistry, 1988
AbstractModifications in the total synthesis of the Amarylidaceae alkaloid of galanthamine from commercially available isovanillin and tyramine have resulted in a shortened reaction sequence, which is amenable to upscaling and in improved product yield.
Jerzy Szewczyk   +2 more
openaire   +1 more source

Total Synthesis of (+)- and (-)-Galanthamine

HETEROCYCLES, 2010
The stereoselective total synthesis of (+)-galanthamine [(+)-1], an antipode of the natural product, and (-)-galanthamine [(-)-1] starting from D -glucose is described. The cyclohexene unit in (+)-1 was prepared in an optically active form from D -glucose using Ferrier's carbocyclization reaction, and the benzylic quaternary carbon was ...
Noritaka Chida   +2 more
openaire   +1 more source

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