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Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor
Bioactivity-guided fractionation of Corydalis yanhusuo has resulted in the isolation of eight known isoquinoline alkaloids - tetrahydropalmatine, isocorypalmine, stylopine, corydaline, columbamine, coptisin, 13-methylpalmatine, and dehydro-corybulbine. The tertiary alkaloids were further analyzed by...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245449/ https://www.ncbi.nlm.nih.gov/pubmed/18830156 http://dx.doi.org/10.3390/molecules13092303 |
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author | Ma, Zhong-Ze Xu, Wei Jensen, Niels H. Roth, Bryan L. Liu-Chen, Lee-Yuan Lee, David Y. W. |
author_facet | Ma, Zhong-Ze Xu, Wei Jensen, Niels H. Roth, Bryan L. Liu-Chen, Lee-Yuan Lee, David Y. W. |
author_sort | Ma, Zhong-Ze |
collection | PubMed |
description | Bioactivity-guided fractionation of Corydalis yanhusuo has resulted in the isolation of eight known isoquinoline alkaloids - tetrahydropalmatine, isocorypalmine, stylopine, corydaline, columbamine, coptisin, 13-methylpalmatine, and dehydro-corybulbine. The tertiary alkaloids were further analyzed by chiral HPLC to determine the ratios of d-and l-isomers. The isolated compounds were screened for their binding affinities at the dopamine D(1) receptor. Isocorypalmine had the highest affinity (K(i) = 83 nM). The structure-affinity relationships of these alkaloids are discussed. |
format | Online Article Text |
id | pubmed-6245449 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-62454492018-11-30 Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor Ma, Zhong-Ze Xu, Wei Jensen, Niels H. Roth, Bryan L. Liu-Chen, Lee-Yuan Lee, David Y. W. Molecules Communication Bioactivity-guided fractionation of Corydalis yanhusuo has resulted in the isolation of eight known isoquinoline alkaloids - tetrahydropalmatine, isocorypalmine, stylopine, corydaline, columbamine, coptisin, 13-methylpalmatine, and dehydro-corybulbine. The tertiary alkaloids were further analyzed by chiral HPLC to determine the ratios of d-and l-isomers. The isolated compounds were screened for their binding affinities at the dopamine D(1) receptor. Isocorypalmine had the highest affinity (K(i) = 83 nM). The structure-affinity relationships of these alkaloids are discussed. MDPI 2008-09-25 /pmc/articles/PMC6245449/ /pubmed/18830156 http://dx.doi.org/10.3390/molecules13092303 Text en © 2008 by the authors. Licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). |
spellingShingle | Communication Ma, Zhong-Ze Xu, Wei Jensen, Niels H. Roth, Bryan L. Liu-Chen, Lee-Yuan Lee, David Y. W. Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title | Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title_full | Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title_fullStr | Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title_full_unstemmed | Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title_short | Isoquinoline Alkaloids Isolated from Corydalis yanhusuo and Their Binding Affinities at the Dopamine D(1) Receptor |
title_sort | isoquinoline alkaloids isolated from corydalis yanhusuo and their binding affinities at the dopamine d(1) receptor |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245449/ https://www.ncbi.nlm.nih.gov/pubmed/18830156 http://dx.doi.org/10.3390/molecules13092303 |
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