molecular formula C10H12N2O4 B1682478 Estavudina CAS No. 3056-17-5

Estavudina

Número de catálogo: B1682478
Número CAS: 3056-17-5
Peso molecular: 224.21 g/mol
Clave InChI: XNKLLVCARDGLGL-JGVFFNPUSA-N
Atención: Solo para uso de investigación. No para uso humano o veterinario.
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Descripción

Stavudine es un inhibidor de la transcriptasa inversa análogo de nucleósido (ITIAN) utilizado principalmente en el tratamiento de la infección por el virus de la inmunodeficiencia humana (VIH). Fue descrito por primera vez en 1966 y aprobado para su uso en los Estados Unidos en 1994 . Stavudine funciona inhibiendo la actividad de la transcriptasa inversa del VIH-1, una enzima crucial para la replicación del virus .

Mecanismo De Acción

Stavudine inhibe la actividad de la transcriptasa inversa del VIH-1 compitiendo con el sustrato natural desoxiguanosina trifosfato (dGTP) e incorporándose al ADN viral. Esta incorporación da como resultado la terminación de la síntesis de ADN, lo que evita que el virus se replique . Stavudine se fosforila a metabolitos activos que compiten por la incorporación al ADN viral, inhibiendo la enzima de forma competitiva .

Aplicaciones Científicas De Investigación

Stavudine tiene varias aplicaciones de investigación científica, incluyendo:

Métodos De Preparación

Rutas de Síntesis y Condiciones de Reacción: Stavudine se puede sintetizar mediante varios métodos. Un método común implica la conversión de timidina a stavudine a través de una serie de reacciones químicas. El proceso generalmente incluye el uso de reactivos como trifosgeno y piridina, seguido de pasos de desprotección para producir el producto final .

Métodos de Producción Industrial: En entornos industriales, la stavudine se produce utilizando técnicas de síntesis química a gran escala. El proceso implica múltiples pasos, incluida la protección de grupos funcionales, reacciones selectivas para introducir las modificaciones deseadas y pasos de purificación para obtener stavudine de alta pureza .

Análisis De Reacciones Químicas

Tipos de Reacciones: Stavudine experimenta diversas reacciones químicas, incluyendo:

Reactivos y Condiciones Comunes:

Principales Productos Formados: Los principales productos formados a partir de estas reacciones incluyen varios metabolitos y derivados modificados de stavudine, que pueden tener diferentes propiedades farmacológicas .

Comparación Con Compuestos Similares

Stavudine es similar a otros inhibidores de la transcriptasa inversa análogos de nucleósidos como la didanosina y la zalcitabina. tiene propiedades únicas que lo distinguen de estos compuestos:

Lista de Compuestos Similares:

La estructura química y el mecanismo de acción únicos de Stavudine lo convierten en un compuesto valioso en el tratamiento de la infección por VIH y un tema de investigación científica continua.

Propiedades

IUPAC Name

1-[(2R,5S)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-5-methylpyrimidine-2,4-dione
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI

InChI=1S/C10H12N2O4/c1-6-4-12(10(15)11-9(6)14)8-3-2-7(5-13)16-8/h2-4,7-8,13H,5H2,1H3,(H,11,14,15)/t7-,8+/m0/s1
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI Key

XNKLLVCARDGLGL-JGVFFNPUSA-N
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Canonical SMILES

CC1=CN(C(=O)NC1=O)C2C=CC(O2)CO
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Isomeric SMILES

CC1=CN(C(=O)NC1=O)[C@H]2C=C[C@H](O2)CO
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Molecular Formula

C10H12N2O4
Record name 2',3'-DIDEHYDRO-3'-DEOXYTHYMIDINE
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DSSTOX Substance ID

DTXSID1023819
Record name Stavudine
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Molecular Weight

224.21 g/mol
Source PubChem
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Physical Description

2',3'-didehydro-3'-deoxythymidine appears as white crystalline solid or powder. Odorless. (NTP, 1992), Solid
Record name 2',3'-DIDEHYDRO-3'-DEOXYTHYMIDINE
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Solubility

50 to 100 mg/mL at 70 °F (NTP, 1992), 5-10 g/100 mL at 21 °C, 30 mg/mL in propylene glycol at 23 °C, In water, 83 mg/mL at 23 °C, 4.05e+01 g/L
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Record name Stavudine
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Vapor Pressure

9.5X10-12 mm Hg at 25 °C /Estimated/
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Mechanism of Action

Stavudine inhibits the activity of HIV-1 reverse transcriptase (RT) both by competing with the natural substrate dGTP and by its incorporation into viral DNA., Enzymatic conversion of stavudine to d4T-triphosphate appears to be complex, involving several steps and enzymes. Stavudine is first converted to dideoxydidehydrothymidine-5'-monophosphate (d4T-monophosphate) by thymidine kinase. Subsequently, d4T-monophosphate is converted to dideoxydidehydrothymidine-5'-diphosphate (d4T-diphosphate), and then to d4T-triphosphate, presumably by the same cellular kinases involved in the metabolism of zidovudine. ... d4T-Triphosphate is a structural analog of thymidine triphosphate, the natural substrate for viral RNA-directed DNA polymerase. ... d4T-triphosphate appears to compete with thymidine triphosphate for viral RNA-directed DNA polymerase and incorporation into viral DNA. Following incorporation of d4T-triphosphate into the viral DNA chain instead of thymidine triphosphate, synthesis is terminated prematurely because the absence of the 3'-hydroxy group on the drug prevents further 5' to 3' phosphodiester linkages., Stavudine is phosphorylated by cellular kinases to the active metabolite stavudine triphosphate. Stavudine triphosphate inhibits the activity of HIV reverse transcriptase both by competing with the natural substrate deoxythymidine triphosphate (Ki =0.0083 to 0.032 uM), and by its incorporation into viral DNA causing a termination of DNA chain elongation because stavudine lacks the essential 3'-OH group. Stavudine triphosphate inhibits cellular DNA polymerase beta and gamma, and markedly reduces the synthesis of mitochondrial DNA., d4T-Triphosphate can bind to and inhibit some mammalian cellular DNA polymerases, particularly beta- and gamma-polymerases, in vitro, and markedly reduce the synthesis of mitochondrial DNA. ...gamma-polymerase, an enzyme involved in mitochondrial DNA synthesis, is the polymerase most susceptible to inhibition. However, d4T-triphosphate and other dideoxynucleoside triphosphates appear to have much greater affinity for viral RNA-directed DNA polymerase than for mammalian DNA polymerases. ... Inhibition of beta- and gamma-polymerases by these drugs may account, to some extent, for the toxic effects associated with stavudine and other nucleosides in humans.
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Color/Form

White to off white crystalline solid, Colorless granular solid from ethanol/benzene

CAS No.

3056-17-5
Record name 2',3'-DIDEHYDRO-3'-DEOXYTHYMIDINE
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Melting Point

318 to 320 °F (NTP, 1992), 159-160 °C, 165-166 °C, 159 - 160 °C
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Retrosynthesis Analysis

AI-Powered Synthesis Planning: Our tool employs the Template_relevance Pistachio, Template_relevance Bkms_metabolic, Template_relevance Pistachio_ringbreaker, Template_relevance Reaxys, Template_relevance Reaxys_biocatalysis model, leveraging a vast database of chemical reactions to predict feasible synthetic routes.

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Strategy Settings

Precursor scoring Relevance Heuristic
Min. plausibility 0.01
Model Template_relevance
Template Set Pistachio/Bkms_metabolic/Pistachio_ringbreaker/Reaxys/Reaxys_biocatalysis
Top-N result to add to graph 6

Feasible Synthetic Routes

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