37 results about "Azlocillin Sodium" patented technology

A crystalline azlocillin sodium and its production are disclosed. It is characterized by displaying the characteristic data described in specifications on differential scanning calorimeter and X-ray powdery diffraction pattern. Its advantages include simple process, low cost, short production period and high purity.

The preparation process of sodium azlocillin includes the following steps: 1. adding triethylamine slowly into water solution of ampicillin at 0-4 deg.c and stirring to clarify the reaction liquid; 2. adding 2-imidazolidinyl ketacyl chloride into the solution at 0-4 deg.c while dropping water solution of Na2CO3 or NaHCO3 to control pH 7.5-8.5 and performing condensation; 3. adding ethyl acetate into the reaction mixture at 0-5 deg.c and regulating pH value to 1.7-1.9; 4. separating to obtain organic phase, and eliminating heat source and impurity to obtain crystallization liquid; and 5. adding ethyl acetate solution of sodium isocaprylate to crystallize, separating and drying to obtain powdered white sodium azlocillin. The process has convenient operation, mild reaction condition, high yield and high product quality.

The invention provides a preparation method of azlocillin sodium and azlocillin sodium used for injection, and the azlocillin sodium and the azlocillin sodium used for injection which can be prepared by the method. The method comprises the steps of: in a new solution system, leading ampicillin trihydrate to have a reaction with 1- chloroformyl-2-imidazolone under the optimized temperature condition, and producing high-quality azlocillin acid with higher reaction efficiency and yield; and directly salifying, sterilizing and freeze-drying the prepared azlocillin acid, and obtaining the azlocillin sodium product used for injection.

The invention relates to a preparation method for Azlocillin sodium, which belongs to the synthetic technical field of antibiotics. The preparation method comprises the following steps: preparing a solution used for a condensation reaction, drawing dichloromethane into a reactor, putting ampicillin into the reactor with stirring, controlling the weight ratio of dichloromethane to ampicillin, thencooling and controlling the reduced temperature, then regulating the pH value to alkalescence by a pH regulator to obtain an solution used for condensation reaction; performing a condensation reaction; extracting and separating; crystallizing; drying; performing a salifying reaction; decoloring; freezing and drying; crushing. The invention has the advantages that the preparation method is capableof simplifying the operation, reducing the usage of the chemical solutions and the risks on environmental pollution; and has simple operation; can effectively avoid the loss caused by chromatography,raise the yield of Azlocillin sodium; and has mild salifying reaction condition, reduce the risk that Azlocillin sodium can be decomposed in alkali. The content of a single impurity of the obtained Azlocillin sodium dried product is lower than 0.6 percent and the content of total impurity of the obtained Azlocillin sodium dried product is lower than 1 percent which are obviously superior to the pharmacopoeia standard.

The invention belongs to the technical field of medicines, and particularly relates to an azlocillin sodium compound. The structural formula of the azlocillin sodium compound is defined in the specification, and the X-ray powder diffraction spectrogram of the azlocillin sodium compound, which is obtained by measurement by using Cu-K alpha ray, is shown in the figure 1. The invention further provides a preparation method of the azlocillin sodium compound, a medicine composition containing the azlocillin sodium compound, and a preparation method of the medicine composition. The dosage forms of the azlocillin sodium compound are sterile powder injection and freeze-dried powder injection. The azlocillin sodium compound provided by the invention almost does not absorb moisture, is easy to store and has good storage stability and low impurity content; and therefore, medication safety is greatly improved.

The invention relates to a method for preparing azlocillin sodium. An azlocillin acid is subjected to once salt-forming reaction and then is freeze-dried, thereby acquiring freeze-dried powder of the azlocillin sodium. The method has the advantages of convenient operation, low cost and short production cycle. The acquired freeze-dried powder of the azlocillin sodium is stable in quality, high in purity and excellent in water-solubility.

The invention provided a method for preparing high-purity Mezlocillin sodium, and a method for preparing the Mezlocillin sodium powder injection. The method includes (1) dissolving Mezlocillin sodium crude product in purified water, and adjusting the pH value to less than 7 with the pH regulator; (2) extracting with organic solvent, separating the organic phase, drying with desiccant, and vacuum recovering to dry to obtain the product; (3) dissolving the product with eluting agent of mixed solution of hydrocarbon solvent and chlorine-containing solvent, eluting with alumina as filler of medium-pressure chromatography column, and collecting the fraction in a sectional manner; (4) mixing fractions with the Mezlocillin acid content of no smaller than 80%, vacuum concentrating, dissolving into ethanol, and basifying with base to separate precipitate; and (5) re-crystallizing the precipitate with ethanol, and freeze drying to obtain the high-purity Mezlocillin sodium.

The invention relates to a process for preparing azlocillin sodium, which comprises carrying out condensation reaction between ampicillin and imidazolidinoxyl chlorine in aqueous phase, the crystallizing in acetone / water, ethanol / water or acetone / ethanol / water system so as to obtain azlocillin, then directly obtaining salts with sodium hydroxide, finally freeze-drying.

The invention provides preparation methods for azlocillin sodium and an azlocillin sodium freeze-dried powder for injection. The preparation methods are simple to operate and suitable for popularization. The obtained azlocillin sodium is high in yield, high in quality, good in stability and high in clinic usage safety. The provided preparation method for the azlocillin sodium freeze-dried powder for injection precisely controls warm-keeping temperature, warm-keeping time, pressure and other parameters, controls multi-layer filtering, and controls other things, so that the obtained azlocillin sodium freeze-dried powder is good in stability, and is improved in clinic usage safety.

The invention discloses a high efficient preparation method of azlocillin sodium for injection. According to the preparation method, ampicillin and imidazole acyl chloride carry out condensation reactions in a water phase, then the reaction product is crystallized in an acetone/water, ethanol/water, or acetone/ethanol/water system, then the crystals directly carry out salt forming reactions with sodium carbonate and/or sodium bicarbonate, and the reaction product is freeze-dried to obtain azlocillin sodium. The pharmaceutical effect of azlocillin sodium is effectively improved; and the problem that in a conventional technology, the pharmaceutical effect of azlocillin sodium is reduced is solved.

The present invention relates to high efficiency antibiotic medicine composition containing azlocillin sodium and sulbactam in the weight ratio of 0.1-10, optimally of 1-4. The medicine composition has obvious cooperative effect of azlocillin sodium and sulbactam and antibiotic capacity much higher than azlocillin sodium. The present invention has wide antibiotic spectrum, powerful bactericidal effect, high chemical stability and low toxicity, and the medicine composition is prepared into injection normally.

The invention discloses an azlocillin medicine composition. A preparation method of the medicine composition comprises the following steps: disinfecting and sterilizing azlocillin sodium powder after sieving to obtain sterile azlocillin sodium powder and feeding the sterile azlocillin sodium powder to a clean region for later use; cleaning and sterilizing small bottles for subpackaging the azlocillin sodium powder and then feeding to the clean region for later use; subpackaging the sterile azlocillin sodium powder into the sterilized bottles; and covering by butyl rubber stoppers and then pressing by aluminum caps to seal, so as to obtain an azlocillin sodium powder injection. By adopting the method disclosed by the invention, the azlocillin sodium particles are optimized, the defect that the azlocillin sodium is difficult to subpackage in the prior art is effectively overcome, and the stability of the preparation is remarkably improved; the product performance test shows that the azlocillin medicine composition prepared by the preparation method is good in quality, and the test indexes are free of significant changes after long-term tests for more than 12 months, and accord with the quality standard, which shows that the preparation is good in stability.

The present invention relates to a children type azlocillin sodium pharmaceutical composition, especially to a combination application package, wherein the composition is an azlocillin sodium and low-sodium carrier infusion pharmaceutical combination preparation, which comprises azlocillin sodium for injection and a low-sodium carrier infusion, wherein the low-sodium carrier infusion contains a glucose and sodium chloride injection (15-200:1), a glucose, sodium chloride and potassium chloride injection (15-200:1:0-1) and the like. According to the present invention, the clinical application steps are simplified compared with the compatible mixing use of the azlocillin sodium and the low-sodium carrier infusion; and the clinical risk caused by the excessive sodium positioned in the blood and incapable of being metabolized due to the children kidney achieving the immature development state is reduced so as to improve the clinical application quality and the safety of the children medication are improved.

The invention discloses a synthesis method of azlocillin sodium. The synthesis method comprises the following steps: (1) dissolving raw materials; (2) carrying out condensation reaction; (3) carrying out purification treatment; (4) preparing finished-product azlocillin; (5) carrying out salt formation reaction; (6) filtering and degerming; (7) freezing and drying. According to the synthesis method of the azlocillin sodium, disclosed by the invention, a synthesis process is simplified effectively and reaction conditions are moderate; the feasibility of implementation is high and the raw materials are easily obtained; the controllability of a synthesis technology is relatively good and industrial production is convenient to realize; the obtained azlocillin sodium has the advantages of high yield, great purity and stable drug property and has a wide market prospect.

The invention provides an azlocillin sodium freeze-dried powder injection for injection prepared from double excipients, relates to the field of pharmaceutical preparation and preparation method, andmainly overcomes the defects that the excipients in a production formula of an azlocillin sodium freeze-dried powder injection for injection has long freeze-drying time, high drying temperature and high energy consumption in production in the prior art. The azlocillin sodium freeze-dried powder injection for injection uses double excipients including mannitol and hydroxyethyl starch 130/0.4, the main drug is azlocillin sodium, the weight ratio of the main drug to the excipients is (100:100)-(100:130), and the weight ratio of mannitol to hydroxyethyl starch 130/0.4 is (100:50)-(100:80). The azlocillin sodium freeze-dried powder injection for injection is prepared from the main drug and the excipients. The azlocillin sodium freeze-dried powder injection for injection provided by the invention has the advantages of stable quality, safety and effectiveness, simple product production process, short drying time, low drying temperature and low energy consumption in production.

The invention relates to a method for quickly detecting azlocillin sodium in milk by surface enhanced Raman spectroscopy, which comprises the following steps of pretreating a sample to obtain an eluent, thereby obtaining a pretreated milk sample, preparing standard solutions, namely weighing azlocillin sodium standard substances, adding water, uniformly mixing to obtain azlocillin sodium standardsolutions, and respectively preparing azlocillin sodium standard solutions with different concentrations for later use, raman detection: respectively adding the pretreated milk sample and azlocillin sodium standard solutions with different concentrations in the previous step into nanogold sol, uniformly mixing, adding an aqueous solution of sodium chloride, uniformly mixing, and carrying out Ramanspectrum detection, and finally, conducting linear fitting. The method disclosed by the invention has the advantages of high sensitivity, short time, strong specificity, no damage, small required sample amount, simple pretreatment and the like, is suitable for detecting azlocillin sodium in milk, and has a relatively good application prospect.

The invention provides an azlocillin sodium composition powder for injection, and belongs to the field of medicine and medicine preparation technology. The azlocillin sodium composition powder comprises following raw material ingredients, by weight, 7.26 to 9.17 parts of azlocillin sodium, 1.45 to 1.84 parts of chitosan nanoparticle, and 88.99 to 91.29 parts of injection water. Advantages of the azlocillin sodium composition powder are that: the size of the chitosan nanoparticle is ultra small, so that the chitosan nanoparticle is capable of passing through capillary vessels with a smallest diameter, rapid removing of the chitosan nanoparticle by macrophage is avoided, so that lasting time of the azlocillin sodium composition in blood is prolonged greatly; the azlocillin sodium composition is capable of improving antimicrobial activity of azlocillin sodium significantly, reducing dosage of azlocillin sodium in clinic, and reducing adverse reaction of azlocillin sodium; and the chitosan nanoparticle can be used as a freeze-dried skeleton agent of the freeze-dried powder injection instead of mannitol so as to avoid active effects of mannitol on human bodies.

The invention relates to a preparation method of azlocillin sodium based on a conveying device having fixing grooves. The method comprises the following steps: firstly, cleaning reagent bottles; secondly, sub-packaging, filling azlocillin sodium powders into the reagent bottles according to specifications; then, covering the reagent bottles containing the azlocillin sodium powders; and then, packaging the covered reagent bottles; finally, implementing light inspection, labeling, checking and packaging procedures, wherein each procedure is connected with the other by a conveying structure. The conveying device comprises multiple fixing structures which are matched with each other. A conveying belt is arranged on the fixing structures. Bilateral sides of the upper end face of the conveying belt are provided with two opposite vertical fixing plates. The fixing grooves are alternately arranged on the inner sides of the two vertical fixing plates. The fixing grooves on different vertical fixing plates are distributed symmetrically. A fixing rod is clamped between two symmetric fixing grooves. The preparation method of azlocillin sodium based on the conveying device having the fixing grooves solves the problem that the reagent bottles are easy to topple over in the conveying process of the conventional conveying device.