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Файл:Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_5491_Библиотеки_им_академика_М_И_Перельмана
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relatively rapid absorption and onset of action, similar to subcutaneous
administration.
Intravenous: Normorphine can be administered intravenously (directly
into a vein) for rapid onset of action in emergency situations or for
anesthesia. Intravenous administration provides the quickest absorption
and onset of analgesic effects.
Rectal: Normorphine can be administered rectally in the form of
suppositories. Rectal administration may be used when oral
administration is not feasible or when rapid onset of action is desired.
Transdermal: While less common, normorphine can be administered
transdermally through specialized patches or creams that deliver the
medication through the skin. Transdermal administration provides a slow,
sustained release of the medication over an extended period.
Pharmacological Action:
Analgesia: Normorphine acts as an opioid agonist, binding to and
activating μ-opioid receptors in the brain and spinal cord. Activation of
these receptors inhibits the transmission of pain signals, resulting in
analgesia (pain relief).
Sedation: Normorphine has sedative effects, which are mediated through
its actions on the central nervous system. It can induce drowsiness and
promote relaxation, contributing to its use in pain management and
anesthesia.
Respiratory Depression: Like other opioids, normorphine can depress the
respiratory center in the brainstem, leading to decreased respiratory rate
and depth. Respiratory depression is a potentially serious side effect of
normorphine and requires close monitoring, especially in patients
receiving high doses or with underlying respiratory conditions.
Euphoria: Normorphine has the potential to produce feelings of euphoria
and well-being, which may contribute to its abuse liability and risk of
addiction.
Gastrointestinal Effects: Normorphine can cause constipation due to its
effects on opioid receptors in the gastrointestinal tract, leading to
decreased bowel motility and increased water absorption in the intestines.
Pupil Constriction: Normorphine can cause miosis (constriction of the
pupil) due to its effects on the pupillary muscles, mediated by the
parasympathetic nervous system.
Tolerance and Dependence: Prolonged use of normorphine can lead to the
development of tolerance, requiring higher doses to achieve the same
analgesic effect, as well as physical dependence, characterized by
withdrawal symptoms upon discontinuation.
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Immunomodulation: Normorphine may have immunomodulatory effects,
influencing the activity of immune cells and inflammatory processes.
However, the precise mechanisms and clinical significance of these effects
are not fully understood.
Analysis
Physical Method:
Melting Point Determination: This method involves heating a small sample
of normorphine and observing the temperature range over which it melts.
The melting point can provide information about the purity and identity of
the compound.
Boiling Point Determination: While less common for solid substances like
normorphine, the boiling point can be determined by heating the
compound and observing the temperature at which it vaporizes. This
method is more applicable for liquids.
Solubility Tests: Normorphine can be tested for its solubility in various
solvents, such as water, ethanol, chloroform, or ether. These tests can
provide information about its physical properties and potential
interactions with different solvents.
Density Measurement: The density of normorphine can be determined
using a suitable method, such as a pycnometer or density meter. This
parameter can help in characterizing the physical properties of the
compound.
Particle Size Analysis: Techniques such as microscopy or laser diffraction
can be used to analyze the particle size distribution of normorphine,
which can impact its properties such as dissolution rate and
bioavailability.
Spectroscopic Methods: Spectroscopic techniques such as UV-Vis
spectroscopy, infrared spectroscopy (IR), or nuclear magnetic resonance
spectroscopy (NMR) can provide information about the molecular
structure and functional groups present in normorphine without altering
the compound.
Chemical Method:
Colorimetric Methods: Colorimetric methods utilize color changes to
indicate the presence or concentration of a substance. Normorphine may
form a colored complex with specific reagents, and the intensity of the
color can be measured spectrophotometrically to determine its
concentration.
Titration: Titration involves the controlled addition of a reagent of known
concentration to the normorphine solution until a reaction is completed.
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For instance, normorphine may be titrated with a standard solution of
hydrochloric acid (HCl) to determine its acid content.
Gravimetric Analysis: Gravimetric analysis involves the measurement of
mass to determine the quantity of a substance. Normorphine can be
precipitated from solution using a suitable reagent, and the resulting
precipitate can be collected, dried, and weighed to determine its mass.
Chromatography: Chromatographic techniques, such as thin-layer
chromatography (TLC) or high-performance liquid chromatography
(HPLC), can separate and quantify components in a mixture. Normorphine
can be separated from other compounds in a mixture based on differences
in their chemical properties and retention times.
Mass Spectrometry (MS): Mass spectrometry can be used to identify and
quantify normorphine based on its mass-to-charge ratio and
fragmentation pattern. This technique is highly sensitive and can provide
structural information about the compound.
Nuclear Magnetic Resonance (NMR): NMR spectroscopy can provide
detailed structural information about normorphine by analyzing the
interactions of its nuclei with a magnetic field. This technique is
particularly useful for elucidating molecular structure and determining
purity.
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NORPIPANONE
Scientific name: 4,4-diphenyl-6-(1-piperidinyl)-3-hexanone
Molecular structure:
Physical Properties
Appearance: White crystalline powder
Colour: white to off-white crystalline powder
Odour: odorless
M.p: 102-105 °C
B.p: 370-375 °C
Solubility (water& alcohol): Norpipanone's solubility in various solvents,
such as water, ethanol, chloroform
Molar mass: :347.48 g/mol
Chemical Properties
Chemical formula: C14H19NO
Chemical classification: Norpipanone is classified as a synthetic cathinone
derivative. Cathinones are a class of psychoactive substances that share a
similar structure to cathinone, the main psychoactive alkaloid found in the
khat plant (Catha edulis). Cathinone derivatives, including norpipanone,
are often designed and synthesized for their stimulant effects and may
have abuse potential. They typically act as central nervous system
stimulants and may exhibit effects similar to those of amphetamines or
other illicit stimulant drugs. Due to their psychoactive properties and
potential for misuse, cathinone derivatives are regulated in many
jurisdictions, and their production, distribution, and use may be subject to
legal restrictions.
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Functional group: The functional group present in norpipanone is a ketone
group (-C=O). This functional group consists of a carbon atom double-
bonded to an oxygen atom, with the carbon atom also bonded to two other
carbon atoms. In the case of norpipanone, the ketone group is likely
situated on a seven-carbon chain (heptanophenone backbone), which is
attached to a nitrogen-containing group, possibly a pyrrolidine ring. This
ketone functional group contributes to the chemical properties and
reactivity of norpipanone, allowing it to undergo various organic
reactions.
PH:
HOW IT IS MADE ?/FROM WHETHER IT IS OBTAINED?
Norpipanone is a synthetic compound, meaning it is produced through
chemical synthesis in a laboratory rather than being obtained from natural
sources. The exact synthesis pathway for norpipanone may vary depending on the
specific synthetic route chosen by chemists. However, in general, synthetic
cathinones like norpipanone are typically synthesized from precursor compounds
using organic synthesis techniques.
The synthesis of norpipanone likely involves the chemical modification of
precursor molecules to introduce the desired functional groups and structural
features characteristic of cathinone derivatives. This may include reactions such as
ketone formation, substitution reactions, and cyclization reactions. Specific
reagents, catalysts, and reaction conditions are employed to facilitate these
transformations and control the outcome of the synthesis.
The synthesis of norpipanone and other synthetic cathinones is typically
carried out by trained chemists in laboratory settings. Due to the potential health
risks and legal restrictions associated with synthetic cathinones, their production,
distribution, and use are subject to stringent regulations in many jurisdictions. It's
important to note that the synthesis of norpipanone and similar compounds
should only be conducted by qualified individuals in compliance with applicable
laws and safety guidelines.
Route of Administration:
Oral ingestion: Norpipanone powder may be swallowed or ingested orally,
although this method may result in slower onset of effects compared to
other routes of administration.
Insufflation (snorting): Some individuals may crush norpipanone powder
into fine particles and inhale it through the nose, where it is absorbed
through the nasal mucosa.
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Injection: Although less common due to the risks associated with injecting
substances, some individuals may dissolve norpipanone powder in a
suitable solvent and inject it intravenously or intramuscularly.
Smoking or vaporization: In some cases, synthetic cathinones may be
converted into a freebase form and smoked or vaporized for inhalation.
Pharmacological Action: Norpipanone is a synthetic cathinone derivative, and
while specific pharmacological data for this compound may be limited, we can
infer some potential pharmacological actions based on its structural similarity to
other cathinone compounds and related stimulants. Here are some general
pharmacological actions that may be associated with norpipanone:
Central Nervous System Stimulation: Like other cathinone derivatives,
norpipanone may act as a central nervous system stimulant. It likely
increases the release and inhibits the reuptake of neurotransmitters such
as dopamine, norepinephrine, and serotonin in the brain, leading to
increased alertness, arousal, and euphoria.
Sympathomimetic Effects: Norpipanone may exhibit sympathomimetic
properties, similar to other stimulant drugs. This includes effects such as
increased heart rate, elevated blood pressure, and dilation of bronchial
passages.
Appetite Suppression: Stimulants like norpipanone may suppress appetite,
leading to decreased feelings of hunger and increased energy expenditure.
This effect is commonly observed with cathinone derivatives and related
stimulants.
Psychological Effects: Norpipanone may produce a range of psychological
effects, including increased sociability, talkativeness, and enhanced mood.
However, it may also induce agitation, anxiety, paranoia, and
hallucinations, particularly at higher doses or with chronic use.
Addiction Potential: Synthetic cathinones, including norpipanone, have a
high potential for addiction and abuse due to their stimulant effects and
reinforcement properties. Chronic use can lead to the development of
tolerance, dependence, and compulsive drug-seeking behavior.
Cardiovascular Effects: Norpipanone may exert cardiovascular effects,
including vasoconstriction, increased cardiac output, and arrhythmias.
These effects can contribute to cardiovascular complications and are a
significant concern with stimulant use.
Toxicity: Like other synthetic cathinones, norpipanone may have a narrow
therapeutic window and a high potential for overdose. Acute toxicity can
lead to symptoms such as agitation, hyperthermia, seizures, and
cardiovascular collapse, which can be life-threatening.
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Analysis
Physical Method:
Melting Point Determination: Norpipanone's melting point can provide
information about its purity and identity. The melting point is typically
determined using a melting point apparatus, where the temperature at
which the solid starts to melt and the temperature range over which
melting occurs are recorded.
Boiling Point Determination: While less common for solid substances like
norpipanone, the boiling point can be determined by heating the
compound and observing the temperature at which it vaporizes. This
method is more applicable for liquid substances.
Solubility Tests: Norpipanone can be tested for its solubility in various
solvents such as water, ethanol, chloroform, or ether. These tests provide
information about its physical properties and potential interactions with
different solvents.
Density Measurement: The density of norpipanone can be determined
using a suitable method such as a pycnometer or density meter. Density
measurements can provide information about its purity and packing
arrangement in the solid state.
Spectroscopic Methods: Spectroscopic techniques such as infrared
spectroscopy (IR) or nuclear magnetic resonance spectroscopy (NMR) can
provide information about the molecular structure and functional groups
present in norpipanone without altering the compound.
Microscopy: Microscopic techniques can be used to analyze the
morphology and particle size of norpipanone crystals, providing insights
into its physical form and crystalline structure.
Thermal Analysis: Techniques such as differential scanning calorimetry
(DSC) or thermogravimetric analysis (TGA) can be used to study the
thermal behavior of norpipanone, including its melting point,
decomposition temperature, and heat capacity.
Chemical Method:
Derivatization Reactions: Norpipanone can be subjected to derivatization
reactions to form derivatives with improved properties for analysis, such
as enhanced volatility, solubility, or detectability. Common derivatization
reactions include acylation, alkylation, and silylation.
Functional Group Analysis: Chemical methods can be employed to analyze
the functional groups present in norpipanone. For example, reagents
specific to certain functional groups can be used to identify their presence
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through characteristic chemical reactions, such as the reaction of a ketone
group with 2,4-dinitrophenylhydrazine to form a yellow precipitate.
Chromatographic Methods: Chromatographic techniques such as gas
chromatography (GC) or liquid chromatography (LC) can separate and
quantify norpipanone from other compounds in a mixture based on
differences in their chemical properties, such as polarity or volatility.
Spectroscopic Methods: Spectroscopic techniques such as infrared
spectroscopy (IR) or nuclear magnetic resonance spectroscopy (NMR) can
provide information about the molecular structure and functional groups
present in norpipanone through the analysis of characteristic spectral
features.
Titration: Norpipanone can be subjected to titration reactions with known
reagents to determine its chemical composition or concentration. For
example, a solution of norpipanone can be titrated with a standard
solution of a strong acid or base to determine its acidity or basicity.
Complex Formation: Norpipanone may form complexes with metal ions or
other organic molecules under appropriate conditions, leading to changes
in its chemical properties or behavior. These complexes can be analyzed
using techniques such as UV-Vis spectroscopy or mass spectrometry.
Redox Reactions: Chemical methods can be used to induce redox reactions
in norpipanone, where it can either donate or accept electrons. These
reactions can provide information about its reactivity and chemical
behavior.
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OPIUM
Scientific Name: Papaver Somniferum
Molecular structure:
Physical Properties
Appearance: Varies depending on origin and processing, ranging from
dark brown to black, sticky mass or powder.
Colour: dark brown or reddish-brown color
Odour: Characteristic “oily” or “tarry” smell
Taste: Bitter and unpleasant
M.p: 77.75 and 78.6 °C
B.p: 116°
Solubility (water& alcohol): Partially soluble in water, more soluble in
organic solvents like alcohol and chloroform
Molar mass: 285.34 g/mo
Chemical Properties
Chemical formula: C55H70N4O
Chemical classification: Opium is classified as a natural product or a
botanical substance rather than a specific chemical compound. However,
the alkaloids found in opium, such as morphine, codeine, and thebaine,
belong to various chemical classes. Here's a brief overview of the chemical
classification of some major alkaloids found in opium:
Morphine: Morphine is classified as an alkaloid and belongs to the class of
morphinans. It is a benzylisoquinoline alkaloid, characterized by a
tetracyclic ring structure. Morphine is the primary psychoactive
component of opium and is responsible for its analgesic and sedative
effects.
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Codeine: Codeine is also classified as an alkaloid and belongs to the class
of morphinans, similar to morphine. It is a benzylisoquinoline alkaloid and
is structurally related to morphine. Codeine is a weaker analgesic than
morphine but is still used for pain relief and as a cough suppressant.
Thebaine: Thebaine is another alkaloid found in opium and belongs to the
class of morphinans. It is a precursor in the synthesis of various
semisynthetic opioids, including oxycodone and buprenorphine. Thebaine
has stimulant effects and is less commonly used for its analgesic
properties.
Papaverine: Papaverine is a benzylisoquinoline alkaloid but is structurally
distinct from morphine and thebaine. It is found in opium but in much
lower concentrations compared to morphine and codeine. Papaverine is a
smooth muscle relaxant and is used in the treatment of vasospasm and
erectile dysfunction.
Noscapine: Noscapine is a benzylisoquinoline alkaloid with antitussive
(cough-suppressant) properties. Unlike morphine and codeine, noscapine
does not exhibit analgesic or sedative effects and is not considered to be
addictive.
Functional group: Opium contains various alkaloids, each of which may contain
different functional groups. The major alkaloids found in opium, such as morphine,
codeine, and thebaine, contain nitrogen atoms and functional groups that
contribute to their pharmacological properties. Here are the functional groups
commonly present in some of the major alkaloids found in opium:
Morphine:
Phenolic hydroxyl group (-OH): Present in the phenyl ring of morphine,
contributing to its acidic properties and hydrogen bonding interactions.
Ether group (C-O-C): Found in the morphine molecule, particularly in the
morphine skeleton.
Amino group (-NH2): Present in the morphine molecule, contributing to
its basic properties and forming salts with acids.
Codeine:
Phenolic hydroxyl group (-OH): Similar to morphine, codeine contains a
phenolic hydroxyl group in its phenyl ring.
Ether group (C-O-C): Also found in the codeine molecule, contributing to
its structural similarity with morphine.
Amino group (-NH2): Codeine contains an amino group, which, like
morphine, contributes to its basic properties.
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