S. Berkov, C. Codina, F. Viladomat
Apr 1, 2008
Citations
1
Influential Citations
67
Citations
Quality indicators
Journal
Bioorganic & medicinal chemistry letters
Abstract
N-(14-Methylallyl)norgalanthamine, a new natural compound, together with five known alkaloids: N-allylnorgalanthamine, galanthamine, epinorgalanthamine, narwedine, and lycorine were isolated from mother liquors (waste material) obtained after industrial production of galanthamine hydrobromide from Leucojum aestivum leaves. The structures of N-allylnorgalanthamine and N-(14-methylallyl)norgalanthamine were completely determined by (1)H and (13)C NMR spectroscopy and two-dimensional experiments. N-allylnorgalanthamine (IC(50)=0.18microM) and N-(14-methylallyl)norgalanthamine (IC(50)=0.16microM) inhibit AChE considerably more than the approved drug galanthamine (IC(50)=1.82microM).