Penicillin G potassium salt is a broad-spectrum antibiotic with the chemical name 2S,5R,6R)-6-[(2R)-2-[4-(2-ethoxycarbonyl)-2,3-dihydro-1 ,4-Benzofuronyl]ethoxycarbonyl]-3,3-dimethyl-7-oxa-4-azacyclo[3,4]heptane-2-carboxylic acid. In medical and veterinary practice, Penicillin G potassium salt is commonly used to treat a variety of bacterial infections, including gram-positive and gram-negative bacteria, spirochetes and rickettsiae, among others.
Penicillin G potassium salt exerts its antibacterial effect mainly by inhibiting the growth of bacterial cell walls. It binds to the striated inositol phospholipids of bacteria, preventing cell wall growth and rebuilding, leading to bacterial death. Penicillin G potassium salt can also regulate the acid-base balance of bacteria, making them lose the ability to grow and reproduce.
Penicillin G potassium salt mainly treats the following various infections:
1. Pseudomonas aeruginosa and Pseudomonas aeruginosa infection: These bacteria often cause infections in the respiratory tract, urinary tract, soft tissue and abdominal cavity. Penicillin G potassium salt can effectively control these infections.
2. Shillerella infection: Penicillin G potassium salt can be used to treat typhoid, paratyphoid and other infections.
3. Drug-resistant Staphylococcus aureus infection: Staphylococcus aureus is a pathogenic bacteria that is highly pathogenic and easy to spread, often causing infectious diseases. Penicillin G potassium salt is a very effective drug that can be used to treat drug-resistant Staphylococcus aureus infections.
4. Meningococcal infection: This bacterium is a common pathogen that causes meningitis and sepsis. Penicillin G potassium salt can be used to treat meningococcal infection.
5. Allergic reactions such as urticaria: Penicillin G potassium salt can be used to treat allergic reactions such as urticaria and anaphylactic shock.
In general, Penicillin G potassium salt is a widely used antibiotic and one of the important drugs for the treatment of various bacterial infections.
Penicillin G potassium salt is a β-lactam antibiotic widely used in antibacterial therapy. The synthetic route of Penicillin G potassium salt will be introduced below.
The synthetic route of Penicillin G potassium salt comprises the following steps:
1. Cultivate penicillin-producing strains:
The strain produced by Penicillin G potassium salt is a subgenus Penicillium in the genus Streptomyces. Streptomyces erythraeus or Penicillium chrysogenum are usually used for cultivation to obtain L-α-aminoadipic acid, the precursor of Penicillin G potassium salt.
2. Import Benzyloxycarbonyl (Benzyl Carbonyl):
Under certain protection conditions, add benzyloxycarbonyl group to L-α-aminoadipic acid, and then carry out debenzylation with hydroxide to obtain the structural intermediate of Penicillin G.
3. Hydroxylation:
The hydroxide is reacted with an intermediate of Penicillin G to give the transition state hydroxylated product.
4. Fracture ring:
An acidic catalyst is added to break the rings in the penicillin G molecule to form a penicillin core structure.
5. Direct synthesis of Penicillin G potassium salt:
Penicillin G reacts directly with the potassium salt that accepts cations to obtain Penicillin G potassium salt.
Above are the steps of the synthetic route of Penicillin G potassium salt. In the actual synthesis, it is also necessary to control reaction parameters such as reaction temperature, reaction time, reactant mass, and catalyst concentration to ensure high reaction efficiency and product quality stability. Simultaneously, also need to adopt various separation and purification techniques, carry out purification and purification, to obtain high-purity Penicillin G potassium salt.
Penicillin G potassium salt is a β-lactam antibiotic with the chemical name (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia -1-azabicyclo[3.2.0]heptane-2-carboxylic acid potassium salt, the molecular formula is C16H17KN2O4S, and the molecular weight is 372.48g/mol. Penicillin G potassium salt is widely used to treat many bacterial infections, such as streptococcal infection, pneumococcal infection, Gram-positive bacterial infection, etc., and has broad-spectrum antibacterial activity.
Penicillin G potassium salt belongs to the class of static antibiotics that work by inhibiting the synthesis of bacterial cell walls. The antibiotic inhibits the lateral connection of bacteria and prevents the transport of bacterial cell walls. This causes the bacteria to not be able to carry out cell division and multiplication normally. Penicillin G potassium salt can kill many bacteria, but it is only effective on gram-positive bacteria, not gram-negative bacteria.
Some different chemical reactions may occur with Penicillin G potassium salt during storage and use. For example, Penicillin G potassium salt will undergo acidolysis reaction and lose its antibacterial activity under dilute acidic conditions. In addition, it may also react chemically with other drugs, chemicals and impurities, affecting its stability and efficacy.
In conclusion, Penicillin G potassium salt, as an important β-lactam antibiotic, has a wide range of antibacterial activities and clinical application value. In the process of production and use, it is necessary to strengthen the research on its physical and chemical properties and stability, so as to improve the quality and effect of the drug.