RESUMO
N1-Arylsulfonyltryptamines have been identified as 5-HT6 receptor ligands. In particular, N1-(6-chloroimidazo[2,1-b][1,3]thiazole-5-sulfonyl)tryptamine (11q) is a high affinity, potent full agonist (5-HT6 Ki = 2 nM, EC50 = 6.5 nM, Emax = 95.5%). Compound 11q is selective in a panel of over 40 receptors and ion channels, has good pharmacokinetic profile, has been shown to increase GABA levels in the rat frontal cortex, and is active in the schedule-induced polydipsia model for obsessive compulsive disorders.
Assuntos
Receptores de Serotonina/metabolismo , Agonistas do Receptor de Serotonina/síntese química , Tiazóis/química , Triptaminas/síntese química , Administração Oral , Animais , Disponibilidade Biológica , Células CHO , Cricetinae , Cricetulus , Cães , Lobo Frontal/metabolismo , Haplorrinos , Humanos , Técnicas In Vitro , Camundongos , Microdiálise , Microssomos Hepáticos/metabolismo , Ensaio Radioligante , Ratos , Agonistas do Receptor de Serotonina/farmacocinética , Agonistas do Receptor de Serotonina/farmacologia , Solubilidade , Relação Estrutura-Atividade , Tiazóis/farmacocinética , Tiazóis/farmacologia , Triptaminas/química , Triptaminas/farmacocinética , Triptaminas/farmacologia , Ácido gama-Aminobutírico/metabolismoRESUMO
Siphonodictidine (1) has been synthesized for the first time in a concise and regiocontrolled manner by using 2-(tert-butyldimethylsiloxy)-3-methylfuran (6) as the crucial building block. The silver trifluoroacetate-induced alkylation of 6 with omega-bromogeranyl acetate 7 gave the key gamma-lactone intermediate 8, which on subsequent reduction, conversion of the hydroxyl into the amino group, and amidination afforded siphonodictidine (1) in an overall yield of 25.7% from 6.
