期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 56, 期 23, 页码 9673-9682出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm4013592
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资金
- Danish Council for Independent Research-Medical Sciences
- Lundbeck Foundation
- Novo Nordisk Foundation
- Lundbeck Foundation [R77-2010-6692] Funding Source: researchfish
The synthesis of a new series of Erythrina alkaloid analogues and their pharmacological characterization at various nicotine acetylcholine receptor (nAChR) subtypes are described. The compounds were designed to be simplified analogues of aromatic erythrinanes with the aim of obtaining subtype-selective antagonists for the nAChRs and thereby probe the potential of using these natural products as scaffolds for further ligand optimization. The most selective and potent nAChR ligand to come from the series, 6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline (3c) (also a natural product by the name of O-methylcorypalline), displayed submicromolar binding affinity toward the alpha 4 beta 2 nAChR with more than 300-fold selectivity over alpha 4 beta 4, alpha 3 beta 4, and alpha 7. Furthermore, this lead structure (which also has inhibitory activity at monoamine oxidases A and B and at the serotonin and norepinephrine transporters) showed antidepressant-like effect in the mouse forced swim test at 30 mg/kg.
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