92 results about "Ilaprazole" patented technology

The invention provides ilaprazole enteric-coated tablets and a preparation method thereof. Each enteric-coated tablet contains an enteric-coated pellet and pharmaceutically acceptable tablet excipients, wherein the enteric-coated pellet contains a pellet layer, a medicine loading layer, an isolation layer and an enteric coating layer; and the medicine loading layer contains ilaprazole or pharmaceutically acceptable salt thereof and a stabilizer. The enteric-coated pellet tablets prepared from the ilaprazole have good acid resistance; barrier substances such as an antiacid, a surfactant, an organic solvent, a hydrophobic substance and the like are not contained in the prescription, so that the enteric-coated pellet tablets have health benefits and are safe; the preparation method is easy to operate, the organic solvent is not used, and an active substance is quickly and stably released; and in addition, the pellets in the tablets can be widely and uniformly distributed in an intestinal tract after being taken, the dose dumping is dispersed, and the distribution area of a medicine on the surface of the intestinal tract is increased, so the irritation of the medicine to the intestinal tract can be reduced or eliminated, and the bioavailability of the medicine can be improved.

The invention provides an injection for treating a peptic ulcers and a preparation method thereof. The powder injection provided by the invention comprises the active ingredients of Ilaprazole sodium and excipient, wherein the ratio of the both in parts by weight is (1:1)-(1:30), and the preferable ratio is (1:10)-(1:18). The preferable prescription of the powder injection provided by the invention comprises 1 part of Ilaprazole sodium, 1-30 parts of excipient, 0-10 parts of antioxidant and/or 0-0.3 part of metal ion complexing agent; and a right amount of inorganic base is added to regulate the pH value to 9.0-12.0. The Ilaprazole sodium freeze-dried powder injection provided by the invention has stable quality, and is suitable for treating peptic ulcer bleeding and stress ulcers and preventing upper gastrointestinal bleeding caused by serious diseases.

The invention provides a combination medicament of ilaprazole sodium. The medicament is characterized by comprising the following raw materials in percentage by weight: 5-10 percent of ilaprazole sodium, 25-35 percent of reduction composition containing glutathione and tiopronin with a weight ratio of 1:10 and 45-55 percent of diammonium glycyrrhizinate. The invention also provides a preparation process of the medicament. According to a pharmaceutically acceptable dosage of the ilaprazole sodium, the combination medicament can be respectively prepared into medical preparations of the dosage forms of injections of the combination medicament of the ilaprazole sodium, freeze-drying injections of combination medicament of the ilaprazole sodium, coated tablets of the combination medicament of the ilaprazole sodium, enteric capsules, sprays, and the like and is used for treating gastric ulcer.

The invention provides an ilaprazole enteric coated tablet and a preparation method thereof. The ilaprazole enteric coated tablet comprises enteric coated pellets and a pharmaceutically-acceptable tablet auxiliary material, wherein each enteric coated pellet comprises a pellet core, an isolating layer and an enteric coated layer; and the pellet core comprises ilaprazole or a pharmaceutically-acceptable salt thereof and a stabilizing agent. The enteric coated pellet tablet made from ilaprazole has high acid resistance; in a prescription, barrier substances such as an acid resisting agent, a surfactant, an organic solvent, a hydrophobic substance and the like are not contained, so that the health and safety of a human body are better facilitated; in the preparation method, an organic solvent is not used, so that operation is easy, and active substances are released quickly and stably; and moreover, the pellets in the tablet can be widely and uniformly distributed into an intestinal tract after administration, a dosage is poured out in a scatter way, and the distribution area of a medicament on the surface of the intestinal tract is increased, so that the stimulation of the medicament on the intestinal tract can be reduced or eliminated, and the bioavailability of the medicament is enhanced.

The invention relates to solid state forms of enantiopure ilaprazole, 2[[(4-methoxy-3-methyl-2-pyridinyl)-methyl]sulfnyl]-5-(1H-pyrrol-1-yl) 1H-Benzimidazole. The invention also relates to a pharmaceutical composition for inhibiting gastric acid secretion comprising a solid form of ilaprazole according to the invention in an amount effective to inhibit gastric acid secretion and a pharmaceutically acceptable carrier. The invention also provides methods of treatment for various acid-related gastrointestinal (GI) disorders such as those discussed above.

The invention aims at providing a sodium ilaprazole freeze-dried powder injection which has few adverse reactions and is stable in character and suitable for clinic requirements. The sodium ilaprazole freeze-dried powder injection is prepared from, by weight volume, 0.8-1.2% of sodium ilaprazole, mannitol and 0.05-0.15% of disodium edotato.

The invention provides a preparation method of ilaprazole. According to the method, ilaprazole is prepared through a thioether intermediate; obtained ilaprazole is high in quality and has no overoxidation impurities; the method is simple and easy, high in yield, low in cost, environment-friendly, and suitable for industrial production, and has no need for special equipment; and no toxic chloroform solvent is used.

The invention discloses a sodium ilaprazole medicine composition freeze-dried powder injection for treating peptic ulcer, and belongs to the technical field of medicines. The sodium ilaprazole medicine composition freeze-dried powder injection comprises sodium ilaprazole and an excipient, wherein the excipient is low molecular dextran; sodium ilaprazole is a novel crystal compound different from that reported in the prior art, and the X-ray powder diffraction pattern of sodium ilaprazole is measured by utilizing Cu-K alpha rays and shown in Figure 1. Experiments prove that the novel crystal sodium ilaprazole compound is high in purity, liquidity and stability, low in impurity content and hygroscopicity, and safe and reliable in clinical application; the sodium ilaprazole medicine composition freeze-dried powder injection prepared by utilizing the novel crystal sodium ilaprazole compound is high in bioavailability and stability; the stability of the sodium ilaprazole medicine composition freeze-dried powder injection remains high after the sodium ilaprazole medicine composition freeze-dried powder injection is compatible with a solvent; the content of insoluble particles is extremely low. Therefore, the sodium ilaprazole medicine composition freeze-dried powder injection is particularly suitable for clinical application.

The invention provides a crystalline Ilaprazole sodium hydrate and a preparation method thereof. An X ray powder diffraction spectrum of the crystalline Ilaprazole sodium hydrate provided by the invention includes diffraction peaks represented by the following 2 theta angles: 5.9 degrees +/- 0.1 degree, 25.4 degrees +/- 0.1 degree and 10.7 degrees +/- 0.1degree. The crystalline Ilaprazole sodium hydrate provided in the invention has high crystal purity. In addition, the method provided in the invention for preparation of the crystalline Ilaprazole sodium hydrate has the advantages of simple operation, mild reaction conditions, easy control, low production cost, definite obtaining of a target product crystal with good repeatability, less introduction of impurities, and significantly improves drug bioavailability.

The invention discloses an ilaprazole sodium crystal form and a preparation method thereof. The novel ilaprazole sodium crystal form provided by the invention is easy to prepare, and has advantages of high purity and low impurity content. The preparation method provided by the invention needs low solvent amount, has advantages of low production cost, simple operation and mild reaction condition, is easy to control, and can produce the target product crystalline form doubtlessly and well-repeatedly.

The invention provides various crystal forms of an ilaprazole sodium compound. In tests with influence factors of illuminance, high temperature and high moisture and an acceleration test, the crystal forms are good in stability, wherein the crystal form C is more stable and is suitable for preparing injections and enteric solid preparations. The various crystal forms are simple in preparation method and are suitable for industrial production.

The invention provides a freeze-dried composition of ilaprazole and a preparation method of the freeze-dried composition. The ilaprazole freeze-dried composition, which is prepared in accordance with the method provided by the invention, can be kept stable in an environment which is relatively low in pH value, so that the compliance of clinical application is improved.

A preparing method for high-purity ilaprazole sodium is provided. The method includes 1) dissolving a 2-[(4-methoxy-3-methylpyridin-2-yl)methyl]sulfinyl-5-(1H-pyrrol-1-yl)-1H-benzimidazole crude product into an organic solvent, adding an inorganic alkali to form a salt, and filtering to obtain a 2-[(4-methoxy-3-methylpyridin-2-yl)methyl]sulfinyl-5-(1H-pyrrol-1-yl)-1H-benzimidazole salt (A), 2) dissolving the A into an organic solvent, adjusting pH with an acid until reaching alkalescence to prepare high-purity 2-[(4-methoxy-3-methylpyridin-2-yl)methyl]sulfinyl-5-(1H-pyrrol-1-yl)-1H-benzimidazole (B), and 3) reacting the prepared B with a sodium-containing compound in a water-containing solvent to prepare the ilaprazole sodium.

The invention provides a crystalline Ilaprazole sodium ethylate and a preparation method thereof. The X ray powder diffraction spectrum of the crystalline Ilaprazole sodium ethylate provided by the invention includes diffraction peaks represented by the following 2 theta angles: 5.9 degrees +/- 0.1 degree, and 10.8 degrees +/- 0.1 degree. The crystalline Ilaprazole sodium ethylate provided by the invention has high crystal purity. In addition, the method provided in the invention for preparation of the crystalline Ilaprazole sodium ethylate has the advantages of simple operation, mild reaction conditions, easy control, low production cost, definite obtaining of the target product crystal with good repeatability, fewer introduced impurities, and significantly improves the bioavailability of drugs.

The invention provides a rabeprazole sodium combined medicament and a preparation process thereof. The rabeprazole sodium combined medicament is characterized by comprising the following raw materials as components in proportion by weight: 5-10 of ilaprazole sodium, 20-30 of composition of reduced glutathione and hepatocyte growth-promoting factors in proportion by weight of 1:10, and 50-60 of diammonium glycyrrhizinate. According to a pharmaceutically allowable dose of rabeprazole sodium, pharmaceutical preparations in dosage forms of injection, lyophilized powder injection, enteric coated tablets, enteric coated capsules, spray and the like of the rabeprazole sodium combined medicament are respectively prepared for treating gastric ulcer.

Disclosed is a method for synthesizing chiral ilaprazole. The invention belongs to the technical field of pharmacy. At present, reports about ilaprazole chiral compounds are few. The method includes the following steps: under the protection of nitrogen, adding a phase transfer catalyst and isopropyl ether into thioether in order, adding central metal, adding an oxidant, carrying out quenching withan aqueous sodium sulfite solution after reacting at 0 DEG C for 8 hours, carrying out liquid separation, carrying out organic phase desolvation, and then recrystallizing with ethanol to obtain whitecrystals which are the chiral ilaprazole. The method can be used for pharmaceutical research and industrial production of the chiral eprazole. The method has the characteristics of a novel process, few steps, mild reaction conditions and the like.

The invention relates to optically active ilaprazole and a synthesis method thereof, belongs to the field of pharmaceutical technology, and discloses a method for synthesizing optically active ilaprazole. According to the method, corresponding thiol is used as a starting raw material, and reacts with acrylate or halopropionate to obtain a thioether compound, the thioether compound is oxidized to obtain racemic sulfoxide, and the racemic sulfoxide reacts with another fragment under the action of a chiral phase transfer catalyst to obtain the chiral ilaprazole. According to the present invention, the preparation of the chiral ilaprazole is firstly reported, the synthesis method of the chiral ilaprazole does not require the use of heavy metals and the use of dangerous peroxides, and the excessive oxidation by-product is generated at the penultimate chemical step so as to easily control; and the method has characteristics of novel process, few steps, mild reaction conditions and the like.