Synthesis and GABAA receptor activity of oxygen-bridged neurosteroid analogs
Three analogs of neuroactive steroids were prepared (4–6) in which 1,11- or 11,19-oxygen bridges give a constrained conformation. Their 3D structures were obtained by ab initio calculations and in the case of 3α-hydroxy-11,19-epoxypregn-4-ene-20-one (4), confirmed by X-ray analysis. Biological activ...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/30976 |
| Acceso en línea: | http://hdl.handle.net/11336/30976 |
| Access Level: | acceso abierto |
| Palabra clave: | Steroids Neurosteroids Γ-Aminobutyric Acid Gaba Gabaa Receptor https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | Three analogs of neuroactive steroids were prepared (4–6) in which 1,11- or 11,19-oxygen bridges give a constrained conformation. Their 3D structures were obtained by ab initio calculations and in the case of 3α-hydroxy-11,19-epoxypregn-4-ene-20-one (4), confirmed by X-ray analysis. Biological activity of the synthetic steroids was assayed in vitro using t-[3H]butylbicycloorthobenzoate as radiolabeled ligand for the GABAA receptor. The activity of compound 4 was similar to that of allopregnanolone (1). 1α,11α-Epoxypregnanolone (6) was more active than pregnanolone (2). |
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