molecular formula C17H19ClN2S.ClH<br>C17H20Cl2N2S B195715 Chlorpromazine hydrochloride CAS No. 69-09-0

Chlorpromazine hydrochloride

Numéro de catalogue: B195715
Numéro CAS: 69-09-0
Poids moléculaire: 355.3 g/mol
Clé InChI: FBSMERQALIEGJT-UHFFFAOYSA-N
Attention: Uniquement pour un usage de recherche. Non destiné à un usage humain ou vétérinaire.
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Description

Le chlorhydrate de chlorpromazine est un puissant tranquillisant synthétique qui agit sélectivement sur les centres supérieurs du cerveau comme un dépresseur du système nerveux central. Il est principalement utilisé pour traiter les troubles psychotiques tels que la schizophrénie, le trouble bipolaire, les problèmes de comportement graves chez les enfants, les nausées et les vomissements, l'anxiété avant une intervention chirurgicale et les hoquets persistants .

Mécanisme D'action

Target of Action

Chlorpromazine hydrochloride, a phenothiazine antipsychotic drug, primarily targets dopamine receptors in the brain . It is thought that the antipsychotic actions of chlorpromazine are due to long-term adaptation by the brain to blocking these receptors .

Mode of Action

Chlorpromazine acts as an antagonist on different postsynaptic receptors, primarily on dopaminergic-receptors (subtypes D1, D2, D3, and D4) . By blocking these receptors, chlorpromazine prevents dopamine from binding to its receptors, thereby reducing dopaminergic transmission within the brain . This action is believed to contribute to its antipsychotic effects .

Biochemical Pathways

The primary biochemical pathway affected by chlorpromazine is the dopaminergic pathway . By blocking dopamine receptors, chlorpromazine disrupts the normal functioning of this pathway, leading to reduced dopaminergic transmission . Additionally, it has been found that chlorpromazine can be metabolized by the cytochrome P450 isoenzyme 1A2, with N14-demethylation being the most thermodynamically and kinetically favorable metabolic pathway .

Result of Action

The molecular and cellular effects of chlorpromazine’s action primarily involve the reduction of dopaminergic transmission in the brain . This can lead to a decrease in the positive symptoms of psychosis, such as hallucinations and delusions . Additionally, chlorpromazine has been found to demonstrate cytotoxic and antiproliferative activity against leukemic cells .

Action Environment

Environmental factors can influence the action, efficacy, and stability of this compound. For instance, global warming and environmental pollution have been suggested to create a unique combination of abiotic and biotic stresses to non-target aquatic organisms in light of global warming . .

Analyse Biochimique

Biochemical Properties

Chlorpromazine hydrochloride plays a crucial role in biochemical reactions by acting as an antagonist on various postsynaptic receptors. It primarily interacts with dopaminergic receptors (subtypes D1, D2, D3, and D4), serotonergic receptors (5-HT1 and 5-HT2), histaminergic receptors (H1 and H2), and muscarinic receptors (M1 and M2) . These interactions result in the modulation of neurotransmitter activity, leading to its antipsychotic, antiemetic, and sedative effects.

Cellular Effects

This compound exerts significant effects on various types of cells and cellular processes. It influences cell function by modulating cell signaling pathways, gene expression, and cellular metabolism. For instance, this compound can initiate cell death in both cancerous and healthy liver cells by inducing apoptosis . Additionally, it affects neurogenesis in the rat brain by decreasing the number of Sox-2-expressing stem cells and early neural progenitors .

Molecular Mechanism

The molecular mechanism of this compound involves its action as an antagonist on different postsynaptic receptors. It blocks dopaminergic receptors, leading to a reduction in dopamine activity, which is associated with its antipsychotic properties . This compound also inhibits serotonergic, histaminergic, and muscarinic receptors, contributing to its anxiolytic, antidepressive, and antiaggressive effects . These interactions result in changes in gene expression and enzyme activity, further influencing cellular functions.

Temporal Effects in Laboratory Settings

In laboratory settings, the effects of this compound change over time. The compound exhibits multicompartmental pharmacokinetics, with a half-life of approximately 11.05 hours . It undergoes extensive first-pass metabolism, leading to significant variability in its pharmacokinetics. Over time, this compound can degrade, affecting its stability and long-term impact on cellular functions .

Dosage Effects in Animal Models

The effects of this compound vary with different dosages in animal models. At therapeutic doses, it can cause side effects such as orthostatic hypotension, jaundice, and leukopenia . High doses may lead to toxic effects, including interference with pituitary-gonadal function and neurogenic stem/progenitor cell formation . These dosage-dependent effects highlight the importance of careful dosage management in clinical settings.

Metabolic Pathways

This compound is involved in several metabolic pathways, primarily catalyzed by cytochrome P450 isoenzymes. The main metabolic mechanisms include N-demethylation, S-oxidation, and aromatic hydroxylation . These pathways result in the formation of various metabolites, such as mono-N-desmethylchlorpromazine, chlorpromazine sulfoxide, and 7-hydroxychlorpromazine . These metabolites can further undergo phase II metabolism, including glucuronidation and sulfation .

Transport and Distribution

This compound is transported and distributed within cells and tissues through various mechanisms. It exhibits wide distribution in the body, with a volume of distribution at steady state of approximately 642 liters . The compound is highly protein-bound, with 90-99% of it bound to plasma proteins . This extensive binding affects its localization and accumulation in different tissues.

Subcellular Localization

The subcellular localization of this compound is influenced by its interactions with various biomolecules. It can localize to different cellular compartments, including the cytoplasm and cell membrane. The compound’s activity and function are affected by its localization, as it can interact with specific receptors and enzymes within these compartments . Post-translational modifications, such as phosphorylation, may also play a role in directing this compound to specific organelles.

Méthodes De Préparation

Voies de synthèse et conditions de réaction

Le chlorhydrate de chlorpromazine est synthétisé par un processus en plusieurs étapes. La synthèse commence par la réaction de la 2-chlorophénothiazine avec le chlorure de 3-diméthylaminopropyle en présence d'une base telle que l'amidure de sodium. Cette réaction forme la chlorpromazine, qui est ensuite convertie en son sel de chlorhydrate par traitement avec de l'acide chlorhydrique .

Méthodes de production industrielle

En milieu industriel, le chlorhydrate de chlorpromazine est produit selon des voies de synthèse similaires, mais à plus grande échelle. Le processus consiste à mélanger la chlorpromazine avec de la cellulose microcristalline, du monohydrate de lactose, de l'amidon prégélatinisé, de la silice colloïdale et du stéarate de magnésium dans des conditions spécifiques. Le mélange est ensuite tamisé et comprimé pour obtenir la formulation pharmaceutique finale .

Analyse Des Réactions Chimiques

Types de réactions

Le chlorhydrate de chlorpromazine subit diverses réactions chimiques, notamment des réactions d'oxydation, de réduction et de substitution.

Réactifs et conditions courantes

    Oxydation : Le chlorhydrate de chlorpromazine peut être oxydé en utilisant des réactifs tels que le permanganate de potassium ou le peroxyde d'hydrogène en milieu acide.

    Réduction : La réduction peut être réalisée en utilisant des réactifs tels que l'hydrure de lithium et d'aluminium ou le borohydrure de sodium.

    Substitution : Les réactions de substitution impliquent souvent des nucléophiles tels que les ions hydroxyde ou les amines en milieu basique.

Principaux produits

Les principaux produits formés à partir de ces réactions comprennent le sulfoxyde de chlorpromazine (oxydation), la chlorpromazine réduite (réduction) et divers dérivés substitués (substitution) .

Applications de recherche scientifique

Le chlorhydrate de chlorpromazine a une large gamme d'applications de recherche scientifique :

Mécanisme d'action

Le chlorhydrate de chlorpromazine agit principalement comme un antagoniste des récepteurs de la dopamine. Il se lie et bloque les récepteurs de la dopamine dans le cerveau, en particulier les récepteurs D2, réduisant l'activité des voies de signalisation de la dopamine. Cette action est considérée comme étant responsable de ses effets antipsychotiques. De plus, le chlorhydrate de chlorpromazine présente des propriétés anti-sérotoninergiques et antihistaminiques, ce qui contribue à son profil thérapeutique global .

Comparaison Avec Des Composés Similaires

Le chlorhydrate de chlorpromazine appartient à la classe des antipsychotiques phénothiaziniques. Des composés similaires comprennent :

Le chlorhydrate de chlorpromazine est unique en raison de ses larges applications thérapeutiques, notamment son utilisation dans le traitement des problèmes de comportement graves chez les enfants et son efficacité pour contrôler les nausées et les vomissements .

Propriétés

IUPAC Name

3-(2-chlorophenothiazin-10-yl)-N,N-dimethylpropan-1-amine;hydrochloride
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InChI

InChI=1S/C17H19ClN2S.ClH/c1-19(2)10-5-11-20-14-6-3-4-7-16(14)21-17-9-8-13(18)12-15(17)20;/h3-4,6-9,12H,5,10-11H2,1-2H3;1H
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
Description Data deposited in or computed by PubChem

InChI Key

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

Canonical SMILES

CN(C)CCCN1C2=CC=CC=C2SC3=C1C=C(C=C3)Cl.Cl
Source PubChem
URL https://pubchem.ncbi.nlm.nih.gov
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Molecular Formula

C17H19ClN2S.ClH, C17H20Cl2N2S
Record name CHLORPROMAZINE HYDROCHLORIDE
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DSSTOX Substance ID

DTXSID7024827
Record name Chlorpromazine hydrochloride
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Molecular Weight

355.3 g/mol
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Physical Description

Chlorpromazine hydrochloride appears as white or creamy-white odorless crystalline powder with very bitter taste. pH (5% aqueous solution) 4.0-5.5. pH (10% aqueous solution) 4-5. (NTP, 1992)
Record name CHLORPROMAZINE HYDROCHLORIDE
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Solubility

greater than or equal to 100 mg/mL at 75 °F (NTP, 1992)
Record name CHLORPROMAZINE HYDROCHLORIDE
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CAS No.

69-09-0
Record name CHLORPROMAZINE HYDROCHLORIDE
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Record name Chlorpromazine hydrochloride
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Record name 10H-Phenothiazine-10-propanamine, 2-chloro-N,N-dimethyl-, hydrochloride (1:1)
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Melting Point

378 to 385 °F (decomposes) (NTP, 1992)
Record name CHLORPROMAZINE HYDROCHLORIDE
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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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Customer
Q & A

Q1: What is the primary mechanism of action of Chlorpromazine Hydrochloride?

A1: this compound primarily acts as a dopamine antagonist, blocking the action of dopamine in the brain. This is thought to be responsible for its antipsychotic effects. []

Q2: How does this compound affect prolactin levels?

A2: this compound can stimulate prolactin release in rats, with peak levels observed between 30 and 90 minutes after administration. This effect is dose-dependent and correlates with the drug's antipsychotic potency in humans. []

Q3: Does this compound impact bile secretion?

A3: Yes, this compound can induce cholestasis, a condition characterized by reduced bile flow. This effect is likely due to the drug's ability to form insoluble complexes with bile salts, leading to their precipitation and reduced secretion. [] Studies in Rhesus monkeys demonstrate that this effect is dose-dependent and reversible, with bile flow returning to normal as drug concentrations decrease. []

Q4: What is the molecular formula and weight of this compound?

A4: The molecular formula of this compound is C17H19ClN2S·HCl, and its molecular weight is 355.33 g/mol.

Q5: Does this compound interact with lipids?

A5: Yes, being an amphiphilic molecule, this compound can interact with both polar and non-polar molecules. Studies show that it can interact with bile lipids, forming insoluble complexes with bile salts and solubilizing membrane phospholipids like phosphatidylserine and phosphatidylcholine. []

Q6: How does the structure of this compound contribute to its interaction with bile salts?

A6: this compound is amphiphilic due to its polar tertiary amine group linked to a hydrophobic tricyclic ring system by a short paraffin chain. This structure allows it to interact with both the hydrophilic and hydrophobic regions of bile salts, leading to complex formation and precipitation. []

Q7: Does the sugar-coating on this compound tablets interfere with content determination?

A7: No, studies have shown that the sugar-coating does not interfere with UV spectrophotometric determination of this compound content in tablets. Therefore, shelling the sugar-coat is unnecessary for accurate analysis. []

Q8: What is the impact of this compound on regional blood flow in acute cerebral infarction patients?

A8: Studies show that this compound, particularly when combined with ozagrel, can significantly improve regional blood flow speed in acute cerebral infarction patients. This combination also effectively reduces blood viscosity. []

Q9: What effect does this compound have on diffuse large B lymphoma cells?

A9: In vitro studies show that this compound can inhibit the proliferation of diffuse large B lymphoma cells, potentially by promoting the expression of S1PR2. It also induces apoptosis and promotes G1 cell cycle arrest in these cells. []

Q10: Has this compound shown efficacy in treating intractable hiccups?

A10: Yes, clinical observations suggest that this compound is effective in treating intractable hiccups, showing positive results through various administration routes like acupoint injection, nasal mucosa medication, and combined with traditional Chinese medicine. [, , ]

Q11: What analytical methods are commonly employed for this compound quantification?

A11: Several analytical methods are used for this compound quantification, including:

  • Spectrophotometry: This method relies on the drug's absorbance at specific wavelengths, but it can be influenced by excipients or degradation products. [, , , , , , , , ]
  • Spectrofluorimetry: This method measures the drug's fluorescence intensity, offering high sensitivity and a low detection limit. [, ]
  • Chemiluminescence: This technique exploits the light emitted during a chemical reaction involving the drug, offering high sensitivity. [, ]
  • High-performance liquid chromatography (HPLC): This method separates the drug from other components in a sample before detection, offering high selectivity and sensitivity. [, ]
  • Ultra performance liquid chromatography-tandem mass spectrometry (UPLC/MS/MS): This method combines the separation power of HPLC with the sensitivity and selectivity of mass spectrometry. []
  • Flow injection analysis: This technique automates sample injection and analysis, improving speed and precision. [, , , ]
  • Resonance scattering spectrometry: This method measures the scattering of light by nanoparticles formed upon reaction with the drug, offering high sensitivity and selectivity. []

Q12: Are there specific challenges in analyzing this compound in biological samples?

A12: Yes, biological matrices can introduce interferences, requiring extraction and cleanup procedures before analysis. Methods like UPLC/MS/MS are particularly useful for analyzing trace levels in complex matrices like animal tissues. []

Q13: How do analytical methods ensure accurate and reliable determination of this compound?

A13: Analytical methods undergo validation to ensure their accuracy, precision, and specificity for this compound determination. This involves assessing parameters like linearity, range, limit of detection, limit of quantification, and recovery. [, , , , , , , , , ]

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