molecular formula C38H50N6O5 B1662171 Saquinavir CAS No. 127779-20-8

Saquinavir

Numéro de catalogue: B1662171
Numéro CAS: 127779-20-8
Poids moléculaire: 670.8 g/mol
Clé InChI: QWAXKHKRTORLEM-UGJKXSETSA-N
Attention: Uniquement pour un usage de recherche. Non destiné à un usage humain ou vétérinaire.
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Mécanisme D'action

Target of Action

Saquinavir is an HIV-1 protease inhibitor . The primary target of this compound is the HIV-1 protease , an enzyme that plays a crucial role in the life cycle of the HIV-1 virus .

Mode of Action

This compound works by inhibiting the HIV-1 protease . This protease is responsible for cleaving protein molecules into smaller fragments, a vital process for both viral replication within the cell and the release of mature viral particles from an infected cell . By blocking the action of this protease, this compound impedes the virus from maturing and replicating .

Biochemical Pathways

The inhibition of the HIV-1 protease by this compound leads to the formation of structurally defective and functionally inactive viral particles . This action disrupts the normal life cycle of the HIV virus, preventing it from replicating and spreading within the body .

Pharmacokinetics

This compound is extensively metabolized in the liver following oral administration . Over 90% of its biotransformation is mediated by the CYP3A4 isoenzyme . This compound is rapidly metabolized to a number of inactive mono- and di-hydroxylated compounds .

Result of Action

The result of this compound’s action is a decrease in the amount of HIV in the blood .

Action Environment

The action of this compound can be influenced by various environmental factors. For instance, the presence of other medications can affect its efficacy and stability. This compound is often used in combination with other antiretroviral agents for the treatment of HIV-1 . The co-administration of ritonavir, a potent enzyme inhibitor, increases the bioavailability and subsequent serum concentrations of this compound, thus dramatically improving its antiviral activity .

Applications De Recherche Scientifique

Saquinavir has a wide range of scientific research applications:

    Chemistry: Used as a model compound for studying protease inhibitors and their interactions with enzymes.

    Biology: Investigated for its effects on viral replication and protein synthesis.

    Medicine: Primarily used in the treatment of HIV/AIDS.

    Industry: Employed in the development of new antiviral drugs and therapeutic agents.

Analyse Biochimique

Biochemical Properties

Saquinavir is an inhibitor of the HIV-1 protease enzyme . It interacts with this enzyme, preventing the proteolysis of the Gag polyprotein, which results in the production of immature, non-infectious viral particles . More than 90% of its biotransformation is mediated by the CYP3A4 isoenzyme .

Cellular Effects

This compound exerts its antiviral activity by inhibiting an enzyme critical for the HIV-1 viral lifecycle . It influences cell function by preventing HIV-1 protease activity, thus inhibiting the production of mature, infectious viral particles . This impacts cellular metabolism and gene expression related to viral replication.

Molecular Mechanism

The molecular mechanism of this compound involves the inhibition of the HIV-1 protease enzyme . Its design is based on the “peptidomimetic” principle, where the molecule contains a hydroxyethylene scaffold that mimics the normal peptide linkage (cleaved by HIV protease) but which itself cannot be cleaved . This prevents HIV-1 protease activity, inhibiting the proteolysis of the Gag polyprotein, and resulting in the production of immature, non-infectious viral particles .

Temporal Effects in Laboratory Settings

The effects of this compound over time in laboratory settings have been observed to change. It has been found that all fatty acid levels were lower compared with pre-treatment levels after 4 weeks of treatment, suggesting a prolonged effect of the antiretroviral drug treatment lasting beyond the 4 week post-treatment observation period .

Dosage Effects in Animal Models

In animal models, the effects of this compound vary with different dosages. The oral LD50 of this compound in both rats and mice is >5 g/kg . No acute toxicities or sequelae were noted in a patient ingesting 8 grams of this compound as a single dose .

Metabolic Pathways

This compound is extensively metabolized in the liver following oral administration . In vitro studies have shown that more than 90% of its biotransformation is mediated by the CYP3A4 isoenzyme . This compound is rapidly metabolized to a number of inactive mono- and di-hydroxylated compounds .

Transport and Distribution

This compound is transported by multidrug resistance-associated protein (MRP1) and canalicular multispecific organic anion transporter (MRP2) . The steady-state volume of distribution of this compound is approximately 700 L, suggesting extensive distribution into tissues .

Subcellular Localization

Given its role as a protease inhibitor and its extensive distribution into tissues , it can be inferred that this compound likely localizes to the sites of viral protein synthesis and assembly within the cell

Méthodes De Préparation

Voies de synthèse et conditions de réaction : La synthèse du saquinavir implique plusieurs étapes, commençant par la préparation d'intermédiaires clés. Une méthode implique la sulfonylation méthylique du (1S, 2S)-(1-benzyl-3-chloro-2-hydroxypropyl) tert-butylcarbamate en utilisant du chlorure de méthylsulfonyle en présence de triéthylamine et de méthylbenzène sous atmosphère d'azote. Cet intermédiaire est ensuite mis à réagir avec de l'acétate métallique en présence de 18-couronne-éther-6 et de méthylbenzène pour obtenir du (1S, 2R)-(1-benzyl-3-chloro-2-acide acétique propyl) tert-butylcarbamate. Des réactions ultérieures avec du KOH, du THF et de l'éthanol donnent du (2R, 3S)-1,2-époxy-3-tert-butyloxycarbonyl amino-4-phénylbutane .

Méthodes de production industrielle : La production industrielle du this compound implique généralement une synthèse à grande échelle utilisant des conditions de réaction optimisées pour garantir un rendement et une pureté élevés. Le processus comprend l'utilisation de techniques avancées telles que la calorimétrie différentielle à balayage (DSC), la diffraction des rayons X sur poudre (PXRD) et la spectroscopie infrarouge à transformée de Fourier (FT-IR) pour la caractérisation et le contrôle qualité .

Analyse Des Réactions Chimiques

Types de réactions : Le saquinavir subit diverses réactions chimiques, notamment l'oxydation, la réduction et la substitution. Ces réactions sont essentielles à son métabolisme et à son élimination de l'organisme.

Réactifs et conditions courantes :

    Oxydation : Le this compound peut être oxydé en utilisant des réactifs tels que le peroxyde d'hydrogène ou le permanganate de potassium.

    Réduction : Les réactions de réduction peuvent impliquer des agents tels que le borohydrure de sodium ou l'hydrure de lithium et d'aluminium.

    Substitution : Les réactions de substitution utilisent souvent des agents halogénants tels que le chlorure de thionyle ou le tribromure de phosphore.

Produits principaux : Les principaux produits formés à partir de ces réactions comprennent divers métabolites qui sont excrétés principalement dans les fèces et l'urine .

4. Applications de la Recherche Scientifique

Le this compound a une large gamme d'applications de recherche scientifique :

    Chimie : Utilisé comme composé modèle pour étudier les inhibiteurs de protéase et leurs interactions avec les enzymes.

    Biologie : Étudié pour ses effets sur la réplication virale et la synthèse protéique.

    Médecine : Principalement utilisé dans le traitement du VIH/SIDA.

    Industrie : Employé dans le développement de nouveaux médicaments antiviraux et d'agents thérapeutiques.

5. Mécanisme d'Action

Le this compound exerce son activité antivirale en inhibant l'enzyme protéase du VIH-1. Cette enzyme est essentielle au clivage des polyprotéines en protéines virales fonctionnelles. En bloquant cette enzyme, le this compound empêche la maturation du virus, conduisant à la formation de particules virales non infectieuses . La principale cible moléculaire est la protéase du VIH-1, et la voie implique la perturbation de la réplication et de l'assemblage viraux .

Composés Similaires :

    Ritonavir : Un autre inhibiteur de protéase utilisé en association avec d'autres antirétroviraux. Il est connu pour sa capacité à augmenter l'efficacité d'autres inhibiteurs de protéase en inhibant leur métabolisme.

    Indinavir : Un inhibiteur de protéase qui cible également la protéase du VIH-1 mais présente des propriétés pharmacocinétiques différentes.

    Lopinavir : Souvent utilisé en association avec le ritonavir, il a un mécanisme d'action similaire mais des profils de résistance différents.

Unicité du this compound : Le this compound a été le premier inhibiteur de protéase à être approuvé et présente un profil d'effets indésirables relativement bénin par rapport aux autres traitements antirétroviraux . Sa structure unique et son affinité de liaison à la protéase du VIH-1 en font un composant précieux des thérapies combinées pour le VIH/SIDA .

Comparaison Avec Des Composés Similaires

    Ritonavir: Another protease inhibitor used in combination with other antiretrovirals. It is known for its ability to boost the effectiveness of other protease inhibitors by inhibiting their metabolism.

    Indinavir: A protease inhibitor that also targets the HIV-1 protease but has different pharmacokinetic properties.

    Lopinavir: Often used in combination with Ritonavir, it has a similar mechanism of action but different resistance profiles.

Uniqueness of Saquinavir: this compound was the first protease inhibitor to be approved and has a relatively benign adverse effect profile compared to other antiretroviral therapies . Its unique structure and binding affinity to the HIV-1 protease make it a valuable component of combination therapies for HIV/AIDS .

Propriétés

IUPAC Name

(2S)-N-[(2S,3R)-4-[(3S,4aS,8aS)-3-(tert-butylcarbamoyl)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-3-hydroxy-1-phenylbutan-2-yl]-2-(quinoline-2-carbonylamino)butanediamide
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI

InChI=1S/C38H50N6O5/c1-38(2,3)43-37(49)32-20-26-14-7-8-15-27(26)22-44(32)23-33(45)30(19-24-11-5-4-6-12-24)41-36(48)31(21-34(39)46)42-35(47)29-18-17-25-13-9-10-16-28(25)40-29/h4-6,9-13,16-18,26-27,30-33,45H,7-8,14-15,19-23H2,1-3H3,(H2,39,46)(H,41,48)(H,42,47)(H,43,49)/t26-,27+,30-,31-,32-,33+/m0/s1
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI Key

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

Canonical SMILES

CC(C)(C)NC(=O)C1CC2CCCCC2CN1CC(C(CC3=CC=CC=C3)NC(=O)C(CC(=O)N)NC(=O)C4=NC5=CC=CC=C5C=C4)O
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Isomeric SMILES

CC(C)(C)NC(=O)[C@@H]1C[C@@H]2CCCC[C@@H]2CN1C[C@H]([C@H](CC3=CC=CC=C3)NC(=O)[C@H](CC(=O)N)NC(=O)C4=NC5=CC=CC=C5C=C4)O
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Molecular Formula

C38H50N6O5
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

Related CAS

149845-06-7 (monomethanesulfonate (salt))
Record name Saquinavir [USAN:USP:INN:BAN]
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DSSTOX Substance ID

DTXSID6044012
Record name Saquinavir
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Molecular Weight

670.8 g/mol
Source PubChem
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Solubility

Insoluble, In water, 0.22 g/100 mL @ 25 °C
Record name Saquinavir
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Vapor Pressure

2X10-31 mm Hg @ 25 °C /Estimated/
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Mechanism of Action

The HIV lifecycle is comprised of 3 distinct stages: assembly, involving creation and packaging of essential viral components; budding, wherein the viral particle crosses the host cell plasma membrane and forms a lipid envelope; and maturation, wherein the viral particle alters its structure and becomes infectious. At the center of this lifecycle is the Gag polyprotein which, along with the products of its proteolysis, coordinate these stages and function as the major structural proteins of the virus. The HIV-1 protease enzyme, a dimeric aspartic protease, is the enzyme responsible for cleaving the Gag polyprotein and thus plays a critical role in many aspects of the HIV viral lifecycle. Saquinavir is an inhibitor of the HIV-1 protease enzyme. Its design is based on the "peptidomimetic" principle, wherein the molecule contains a hydroxyethylene scaffold that mimics the normal peptide linkage (cleaved by HIV protease) but which itself cannot be cleaved. By preventing HIV-1 protease activity, and thus the proteolysis of the Gag polyprotein, saquinavir results in the production of immature, non-infectious viral particles., While the complete mechanisms of antiviral activity of saquinavir have not been fully elucidated, saquinavir apparently inhibits replication of retroviruses, including human immunodeficiency virus type 1 (HIV-1) and type 2 (HIV-2), by interfering with HIV protease. The drug, therefore, exerts a virustatic effect against retroviruses by acting as an HIV protease inhibitor., Saquinavir is a selective, competitive, reversible inhibitor of HIV protease. HIV protease, an aspartic endopeptidase that functions as a homodimer, plays an essential role in the replication cycle of HIV and the formation of infectious virus. During HIV replication, HIV protease cleaves viral polypeptide products of the gag and gag-pol genes (i.e., p55 and p160) to form structural proteins of the virion core (i.e., p17, p24, p9, and p7) and essential viral enzymes (i.e., reverse transcriptase, integrase, and protease). Because saquinavir is a structural analog of the HIV Phe-Pro protease cleavage site, the drug inhibits the function of the enzyme. By interfering with the formation of these essential proteins and enzymes, saquinavir blocks maturation of the virus and causes the formation of nonfunctional, immature, noninfectious virions. Saquinavir is active in both acutely and chronically infected cells since it targets the HIV replication cycle after translation and before assembly. Thus, the drug is active in chronically infected cells (e.g., monocytes and macrophages) that generally are not affected by nucleoside reverse transcriptase inhibitors (e.g., didanosine, lamivudine, stavudine, zalcitabine, zidovudine). Saquinavir does not affect early stages of the HIV replication cycle; however, the drug interferes with the production of infectious HIV and limits further infectious spread of the virus., Unlike nucleoside antiretroviral agents, the antiviral activity of saquinavir does not depend on intracellular conversion to an active metabolite. Saquinavir and other HIV protease inhibitors (e.g., amprenavir, indinavir, lopinavir, nelfinavir, ritonavir) act at a different stage of the HIV replication cycle than nucleoside and nonnucleoside reverse transcriptase inhibitors, and results of in vitro studies indicate that the antiretroviral effects of some nucleoside reverse transcriptase inhibitors and HIV protease inhibitors may be additive or synergistic.
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Color/Form

White crystalline solid, Off-white to white very fine powder

CAS No.

127779-20-8
Record name Saquinavir
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Retrosynthesis Analysis

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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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