111 results about "Ceftriaxone Sodium" patented technology

The invention relates to a method for simultaneously detecting multiple residual solvents in ceftriaxone sodium, which adopts a gas chromatographic analysis process to simultaneously detect six organic solvents in medicines, including methanol, ethanol, acetonitrile, acetone, ethyl acetate and triethylamine. The gas chromatographic process is adopted to simultaneously detect the contents of the six organic solvents, and has the advantages of high sensitivity, favorable repetitiveness and high precision; by using a standard addition process, the method does not need any additional standard substance as an internal standard, only needs a pure substance for predicting components, can counteract the matrix effect, and is simple to operate; by using a headspace sampling process, the method prevents the direct solution sample from interfering with detection and from polluting the chromatographic column; and a programmed heating process is adopted to effectively separate low-boiling-point organic solvents from high-boiling-point organic solvents.

An improved process for preparation of ceftriaxone sodium of formula (II),

is disclosed.

The invention relates to a novel green low-cost method for synthesizing ceftriaxone sodium. Firstly, in the 7-ACT synthesis process, the dimethyl carbonate is used as the reaction solvent, and the boron trifluoride-dimethyl carbonate is used as the catalyst, thereby substituting the use of the high-cost high-toxicity acetonitrile; and secondly, in the ceftriaxone sodium synthesis process, the ethanol-water reaction system is adopted to obtain the high-yield high-quality ceftriaxone sodium.

The invention discloses water, ethanol and ethanol aqueous extracts of traditional Chinese medicine pithecellobium clypearia and application of corresponding petroleum ether, ethyl acetate, normal butanol and a water extractants in preparation of medicines for treating methicillin-resistant staphylococcus aureus (MRSA) and antibiotics anti-MRSA sensitization medicines. Meanwhile, the invention further discloses a preparation method of the extracts or extractants. Experimental results show that water, 10% ethanol, 30% ethanol, 60% ethanol, 95% ethanol extracts of pithecellobium clypearia and corresponding ethyl acetate, normal butanol and water extractants have stronger anti-MRSA effect, wherein the activity of the ethyl acetate extracting part of the 60% ethanol extract of pithecellobium clypearia is the strongest, and the ethyl acetate extracting part of the 60% ethanol extract of pithecellobium clypearia has sensitization effect on erythrocin, ceftriaxone sodium, levofloxacin for treating MRSA.

The invention relates to an art for refining a ceftriaxone sodium crude product, which includes the following steps: the ceftriaxone sodium crude product is put into injection water to dissolve till clarification; the insoluble organic solvent of the ceftriaxone sodium is added after the solution is sterilized and filtered; then an aseptic ceftriaxone sodium crystal seed is added, and a crystal nourishing treatment is carried out after a crystal is precipitated; the insoluble organic solvent of the ceftriaxone sodium is added continuously; and finally the ceftriaxone sodium finished product is obtained after normal crystallization, washing and drying. The art for refining the ceftriaxone sodium crude product is characterized in that: the insoluble organic solvent of the ceftriaxone sodium is isopropanol. By adopting a single isopropanol solvent, the art for refining the ceftriaxone sodium crude product reduces the use amount of the solvent sharply, which is 57 percent of the former art, and has the advantages of convenient operation, easy control, short production cycle (shortened by 4 hours compared with the former art), low labor strength, low production cost, and stable color which is weaker than the color of the mixed solvent crystal by 0.5 to 1 size. Meanwhile, the art for refining the ceftriaxone sodium crude product can improve the production yield by 2 percent with the yield being 98 percent, and reduces the damage of the solvent to the operators owing to the weak solvent toxicity.

The invention discloses a preparation method of ceftriaxone sodium. The method comprises the following steps: with 7-ACA and triazine ring as raw materials, reacting under the catalysis of boron trifluoride acetonitrile, crystallizing to obtain 7-ACT, recovering potassium fluoborate and acetonitrile from the mother solution, dissolving 7-ACT and AE-active ester in a unitary or binary solvent system, reacting under catalysis of an organic base, adding a salifying agent and a water-soluble organic solvent in the water phase to separate out sodium salt and obtain ceftriaxone sodium, and recovering 2-mercaptobenzothiazole from the organic phase. The preparation method of ceftriaxone sodium provided by the invention has simple production process and low production cost, the yields in two steps are both higher than 90 percent, the solvents, organic matters, inorganic salts and the like in the reaction system can be recycled, and no or little waste water is generated.

The invention aims to provide a medicinal composition consisting of ceftriaxone sodium and sulbactam sodium, which does not have any sensitization effect, has high stability and is efficient, and a preparation method thereof. The weight ratio of the ceftriaxone sodium to the sulbactam sodium to a stable conditioning agent component in the medicinal composition is (1-100):(0.25-100):(0.0005-9). The medicinal composition provided by the invention is in a good crystal form, and has stable and controllable quality at the temperature between 20 DEG C below zero and 60 DEG C in production and transportation processes and a good curative effect; and an effective period can be up to 36 months. During clinical administration, the medicinal composition is dissolved and diluted through the conventional transfusion, the ceftriaxone sodium and the sulbactam sodium in the medicinal composition have stable content, high solubility and indecomposability, insoluble crystals and sensitized high polymers are not produced, the influences of temperature and illumination are small, high stability is achieved, and the effective period is 36 months, so that a better curative effect is achieved. A preparation method of the medicinal composition provided by the invention is scientific and reasonable, is convenient to operate, and is suitable for large-scale industrial production.

The invention discloses a ceftriaxone sodium powder-injection for injection. the powder-injection is prepared by the following steps: (1) weighing a ceftriaxone sodium crude raw material at 20 DEG C, adding water, stirring and dissolving, adding active carbon, decolouring, filtering, and washing with mixed solvents; (2) by a particle process crystal product molecular assembly and shape-state optimization technology of North China Pharmaceutical Hebei Huamin Pharmaceutical Co., Ltd., adding a solventing-out agent acetone according to a stream acceleration table at 15 DEG C at the stirring speed of 300 r/min; (3) carrying out suction filtration, washing a filter cake with acetone, putting the filter cake into a vacuum drying oven and carrying out vacuum drying at 30-40 DEG C; and (4) sub-packaging preparations of different specifications, and controlling environmental temperature and humidity until temperature is 20-24 DEG C and humidity is less than 40% so as to obtain the ceftriaxone sodium for injection. In comparison with a traditional technology, ceftriaxone sodium prepared by the above preparation method has advantages of less impurity, high stability and the like.

The invention belongs to the field of chemical synthesis, and particularly relates to a synthetic method of a ceftriaxone sodium crude salt. The method comprises the following steps of: (1) performing electrophilic substitution on 7-ACA and a triazine ring by taking a BF3-acetonitrile solution as a catalyst to obtain 7-ACT at last; and (2) undergoing an N-acylation reaction on 7-ACT and AE-active ester in an organic phase, adding sodium iso-octoate, and undergoing a salt forming reaction to obtain the ceftriaxone sodium crude salt. The method is characterized in that: the 7-ACT is prepared with an enzymatic hydrolysis method after electrophilic substitution in the step (1); and a flocculating agent is added after the N-acylation reaction is completed in the step (2). The method has the advantages that: the product yield and purity are raised; the 7-ACT is prepared with the enzymatic hydrolysis method in the first step, and the enzymatic hydrolysis method has the characteristics of specificity and high efficiency, so that side reactions are avoided, the yield is increased by over 8 percent, and can be up to 88 percent, and the product purity is raised; and the flocculating agent is added in the second step, so that insoluble matters in a reaction liquid are removed, and a high-purity ceftriaxone sodium crude salt is obtained finally.

The invention discloses a method for synthesizing ceftriaxone sodium. The method comprises the steps of firstly carrying out condensation on 7-ACA and triazine ring by taking dimethyl carbonate and organic acid as a mixed solvent and taking boron trifluoride dimethyl carbonate as a catalyst, so as to produce 7-ACT, then, enabling 7-ACT and AE (Active Ester) to react by taking tetramethyl guanidine as a cosolvent, so as to produce ceftriaxone, and finally, adding sodium acetate, thereby synthesizing the sodium salt. The method has the advantages that the operating method is simple, the conditions are mild, the raw materials are easily available, the pollution is little, the cost is very low, the purity of the finally obtained ceftriaxone sodium product is over 99.6%, and the molar yield is over 94%.

The invention belongs to the technical field of pharmacy, and in particular relates to a preparation method of ceftriaxone sodium spherical crystals. The method comprises the following steps: providing ceftriaxone sodium crude drug, a bridging agent and a solventing-out agent; dissolving the ceftriaxone sodium crude drug into a polar solvent to obtain a first ceftriaxone sodium solution; mixing the bridging agent with the first ceftriaxone sodium solution to obtain a second ceftriaxone sodium solution; mixing the solventing-out agent with the second ceftriaxone sodium solution so as to separate out the ceftriaxone sodium spherical crystals. The preparation method provided by the invention is suitable for aseptic continuous operation of the actual industry, and not only simplifies the production process, has high single-pass yield and is easy in realization of industrial production, but also obtains coalesced particles with good fluidity, compressibility and stability.

The invention provides a refinement method of a ceftriaxone sodium crude product. Ceftriaxone sodium can be easily subjected to degradation reaction in the crystallization process; and the ceftriaxone sodium is not stable and can be easily subjected to oxidative degradation to generate a degradation product mainly in a pure water system, thereby causing high color grade of the product and directly influencing the quality of the ceftriaxone sodium. The refinement method provided by the invention can lower the degradation of the ceftriaxone sodium in the crystallization process.

The invention relates to a method for synthesizing coarse salt of ceftriaxone sodium, which comprises the following steps: (1) taking 7-aminoce-phalosporanic acid (7-ACA) and a triazine ring as raw materials, adopting boron trifluoride acetonitrile as a catalyst for carrying out electrophilic substitution and finally, preparing 7-ACT by a zymohydrolysis method at a proper pH value; and (2) putting the 7-ACT and AE-active ester into an organic phase, adding a phase transfer catalyst for carrying out an N-acidylating reaction, salifying and crystallizing to obtain the coarse salt of the ceftriaxone sodium. The invention prepares the 7-ACT by the zymohydrolysis method, avoids the generation of a side reaction, enhances the yield and enhances the product purity. The reaction is carried out in the organic phase by the phase transfer catalyst, a product is transferred to a water phase, the continuous contact with a reactant is avoided, the generation of impurities with large molecular weight is lowered, and the coarse salt of the ceftriaxone sodium with high purity and high yield is finally obtained.

The invention discloses a rapid propagation method of a Paris polyphylla plant. The method comprises the steps of inducing calluses, differentiating adventitious buds, and carrying out rooting culture, seedling hardening and transplanting, wherein a culture medium for inducing and rapidly propagating the adventitious buds comprises MS, 1.0-4.0 mg.L<-1> of 6-BA, 0.1-1.0 mg.L<-1> of IAA, 0.1-1.0 mg.L<-1> of KT and 200-500 mg.L<-1> of ceftriaxone sodium, and the rooting culture medium comprises 1/2 MS, 0.1-1.0 mg.L<-1> of IBA, 0.1-0.5 mg.L<-1> of NAA and 0.1%-1.0% of activated carbon. According to the rapid propagation method, methods for inducing and rapidly propagating the adventitious buds and rooting, hardening and transplanting rootless seedlings are further presented based on the callus induction of the Paris polyphylla for the first time, a novel way is provided for the culturing of fine varieties of the Paris polyphylla and the mass and rapid propagation of tissue culture seedlings, and the batch production of the Paris polyphylla plant can be realized under the conditions of short time and low cost.

The invention relates to the technical field of animal breeding, in particular to a breeding method for an experimental macaque. Main feed containing vitamin E is fed to the macaque in at least one of a suckling period, a growth period and an adult period; cefotaxime or ceftriaxone sodium or ceftazidime is added into the feed continuously for 5-7 days every 1-2 months in at least one of the growth period and the adult period; a young macaque is independently fed in the suckling period, feeding quality is further improved, the health condition of the macaque can be timely discovered and managed, the survival rate of the young macaque is improved, and the young macaque is normal in growth and development, flexible in limbs and physically strong. Moreover, the probability and the risk of bacterial dysentery infection of the macaque are reduced, and common health of the macaque and workers is ensured. A normalized experimental animal breeding standard is provided, and the breeding method is easy to popularize and use.

The invention relates to a children pharmaceutical composition containing ceftriaxone sodium, namely a pharmaceutical combined preparation containing ceftriaxone sodium and a low-sodium carrier infusion solution, and particularly relates to a combined package. The children pharmaceutical composition comprises ceftriaxone sodium for injection and the low-sodium carrier infusion solution. The low-sodium carrier infusion solution contains a glucose and sodium chloride injection (15-200):1, a glucose and sodium chloride potassium chloride injection (15-200):1: (0-1) and the like. Compared with a mixture of ceftriaxone sodium and the low-sodium carrier infusion solution, the children pharmaceutical composition has the advantages that clinical application steps are simplified, clinical risks generated because kidneys of children are not developed to be mature and overmuch sodium in blood cannot be metabolized are reduced, and the clinical application quality and safety performance of children medication are improved.

The invention discloses original-quality ceftriaxone sodium and a pharmaceutical preparation thereof. The key technology and industrialization of the third generation of cephalosporin antibiotics active ester intermediate wins the second prize of National Scientific and Technological Progress Award, and the third generation of cephalosporin antibiotics intermediate AE active ester is a key factor for affecting the internal quality of the ceftriaxone sodium. A preparation method comprises the steps that 1, boron trifluoride-acetonitrile serves as a catalyst, and on the condition that acetonitrile serves as solvent, a triazine ring is reacted with 7-ACA to generate 7-ACT; 2, triethylamine and aminothiazoly loximate are added into the solvent, a chloroformate activator is dropwise added slowly during cooling mixing, the 7-ACT is added for a one-pot reaction after stirring is conducted, and ceftriaxone is obtained; 3, a salt-forming agent is added, and the ceftriaxone sodium is obtained. According to the preparation method, use of a condensing agent with higher price is avoided, the process route is shortened, operation is easy, the reaction condition is mild, the product yield is high, the purity is good, and industrial production is easy.

An improved process for the preparation of ceftriaxone sodium comprising the steps of:

i) reacting the 3-cephem derivative of formula (II)

 with halo acid derivative of formula (III)

 wherein X represents halogen and Y represent halogen in the presence of silylating agent and methylene chloride at −25 to 10° C., to produce (IV),

ii) quenching the reaction by pouring the reaction mixture into water or in a aqueous solution of sodium carbonate, iii) preparing sodium salt solution of (IV) by adding sodium carbonate and separating the organic layer, iv) cyclizing the sodium salt of (IV) in the aqueous solution with thiourea at a temperature in the range of 0 to 30° C., v) adjusting the pH to 1.5 to 2.5 to precipitate the ceftriaxone free acid, vi) converting the ceftriaxone free acid to sodium salt using sodium-2-ethyl hexanoate in water and vii) precipitating and isolating the ceftriaxone sodium.

The invention provides a ceftriaxone sodium compound entity for children. A structural formula of the ceftriaxone sodium compound entity is as follows: formula as shown in the specification. The ceftriaxone sodium compound entity is prepared by the following steps: (1) dissolving a ceftriaxone crude product into water, adding activated carbon, stirring and discoloring, and filtering; (2) adding an extraction agent into filtrate to obtain a mixture, transferring and filling the mixture into a pressure-resistant container, and carrying out temperature-controlled freezing on the mixture and taking out the mixture after removing air bubbles; and (3) removing an organic phase of the mixture, dropwise adding acetone at 10-15 DEG C after solids are molten, slowly stirring, growing crystals, filtering, washing, carrying out vacuum drying and packaging preparations of different specifications. Compared with ceftriaxone sodium prepared by a conventional process, the ceftriaxone sodium prepared by the preparation method has the advantages of few impurities, high stability and the like.

The invention discloses a production process of compound preparation of ceftriaxone sodium and tazobactam sodium for injection, comprising the steps of weighing raw materials of ceftriaxone sodium, tazobactam sodium, sterilized water for injection, mixed liquid of ethyl acetate and isopropanol, and anhydrous ethanol based on the weight ratio of 3-5:1:2:5:9; conducing dissolution and filtration; crystallizing and washing; and lyophilizing to obtain the compound preparation of ceftriaxone sodium and tazobactam sodium for injection. The invention is applicable to the compound preparation of ceftriaxone sodium and tazobactam sodium for injection, which is produced according to the ratio of 3:1-5:1 of ceftriaxone to tazobactam; and the invention adopts evenly mixing of liquid phase, can achieve good mixing uniformity, effectively increase the purity of the preparations simultaneously, and further guarantee the advantage of high safety of clinic use.

A Chinese and western composite medicine for treating neoplastic diseases is characterized by comprising Chinese herbal medicinal ingredients and a western medicinal ingredient which are mixed, the Chinese herbal medicinal ingredients include 5 polyzyme tablets and a stomach invigorating and digestion aiding tablet, each polyzyme tablet comprises pepsin, trypsin, pancreatic lipase and amylopsin, and the stomach invigorating and digestion aiding tablet comprises radix pseudostellariae, tangerine peels, Chinese yam, (roasted) malt and hawthorn; the western medicinal ingredient is ceftriaxone sodium injection solution; and the weight of each polyzyme tablet is 0.313g, the total weight of the polyzyme tablets is 1.57g, the weight of the stomach invigorating and digestion aiding tablet is 0.8g, the weight of the ceftriaxone sodium injection solution is 0.75g, and the Chinese herbal medicinal ingredients and the western medicinal ingredient are combined to form the prescription. The Chinese and western composite medicine for treating the neoplastic diseases is particularly used for suppressing and killing pathogenic bacteria capable of causing benign tumor and malignant tumor infection of tissue cells of a human body, the composite medicine is directly dripped into the oral cavity or an affected part of the human body when the human body suffers from the tumor infection, and 3-4 drops of the composite medicine are applied every time. The Chinese and western composite medicine has few side effects, becomes effective within 30 minutes and does not injure the liver, the brain and the kidneys of the human body.