95 results about "Vonoprazan" patented technology

The invention discloses a preparation method of vonoprazan fumarate. The preparation method includes: S1, dissolving 5-(2-fluorophenyl)-1H-pyrrole-3-carboxaldehyde (I) in organic solvent, mixing with methylamine alcohol solution for 6-8h to generate imine, reducing with metal borohydride for 1-2h, and performing post-treatment to obtain a compound according to a formula II; S2, dissolving the compound prepared in the step S1 according to the formula II, in organic solvent, performing ice bathing and mixing with Boc anhydride to allow reaction for 1-2h, and performing post-treatment to obtain a compound according to a formula III; S3, dissolving the compound prepared in the step S2 according to the formula III, in organic solvent, adding sodium hydride and crown ether, adding 3-pyridine sulfuryl chloride, mixing for reaction for 1-2h, and performing post-treatment to obtain a compound according to a formula IV; S4, reacting the compound prepared in the step S3 according to the formula IV, in trifluoroacetic acid and methylene dichloride solution to obtain a compound according to a formula V; and S5, dissolving the compound prepared in the step S4 according to the formula V, in organic solvent to be salified with fumaric acid, thereby obtaining the vonoprazan fumarate (VI). The preparation method has few side reactions and high intermediate purity and allows simple post-treatment.

The invention discloses a pharmaceutical composition with vonoprazan fumarate and a preparation method thereof and particularly provides a pharmaceutical composition containing an active ingredient, vonoprazan fumarate, and a method of stabilizing the pharmaceutical composition. Specifically, the pharmaceutical composition containing the vonoprazan fumarate, plasticizer and excipient has good preparation stability and has good stability during illumination.

The invention relates to the field of drug preparation researches, and especially relates to a preparation method of 1-[5-(2-fluorophenyl)-1-(pyridyl-3-ylsulfonyl)-1H-pyrryl-3-yl]-N-methyl methylamine fumarate (represented by formula I) and an intermediate thereof. The method is characterized in that the above compound represented by formula (I) is prepared through nitrogen monomethylation and salt formation with a compound represented by formula (V) as an important intermediate. The structural formula of the compound represented by formula (V) is shown in the specification, and the structural formula of the compound represented by formula (I) is also shown in the specification.

The invention relates to a vonoprazan fumarate enteric-coated capsule and a preparation method thereof, particularly relates to a pellet type vonoprazan fumarate enteric-coated capsule and a preparation method thereof, and belongs to the technical field of medicines. The vonoprazan fumarate enteric-coated capsule sequentially comprises a hollow pill core, a main drug layer, an isolation layer, an enteric layer and a capsule layer from inside to outside, wherein the weight of the main drug layer is 80-130 percent of that of the hollow pill core, the weight of the isolation layer is 10-30 percent of the total weight of the hollow pill layer and the main drug layer, and the weight of the enteric layer is 30-80 percent of the total weight of the hollow pill layer, the main drug layer and the isolation layer. Each capsule contains 10-20mg of vonoprazan. By adopting the technical scheme, the dispersion of vonoprazan fumarate is improved, and the dissolution rate is increased.

The present invention relates to a vonoprazan fumarate single crystal, a preparation method and uses thereof. According to the present invention, the X-ray powder diffraction results show that the characteristic peaks are showed at the 2[theta] of 11.4, 12.3, 13.5, 15.1, 15.3, 16.9, 18.6, 20.4, 20.7, 22.4 and 25.1, the obtained single crystal is not reported, and other determination results show that the crystal structure belongs to a monoclinic system, the space group is P2(1)/c, the intracellular molecular number Z is 4m the single crystal is a colorless orthorhombic crystal at a room temperature, the morphology is good, and the HPLC purity is up to more than 99.5%; and with the preparation method, the vonoprazan fumarate and other impurities are well separated, and the good reproducibility is good.

The invention provides a preparation method of vonoprazan fumarate. The preparation method comprises the following steps of enabling 5-(2-fluorophenyl)-1-(pyridine-3-sulfonyl)-1-H-pyrrole-3-formaldehyde and methylamine to react to generate Schiff base; using a mild boride reducing agent to reduce the Schiff base, so as to prepare vonoprazan. The preparation method has the advantages that the reaction treatment condition is mild, the yield rate is high, the product purity is high, and the like. The vonoprazan fumarate prepared by the preparation method has the advantages that the yield rate is increased to 95%, and the content of HPLC (high performance liquid chromatography) is 99%; when preparing by the sodium borohydride reduction method, the yield rate of 70%, and the content of HPLC of 96% are greatly improved.

The invention discloses vonoprazan fumarate dispersible tablets, used for treating gastric and duodenal ulcers. The vonoprazan fumarate dispersible tablets are prepared from vonoprazan fumarate, with the addition of adjuvant materials. The vonoprazan fumarate dispersible tablets are rapid in disintegration and absorption, high in bioavailability, convenient to take, low in content of intestinal residues, light in side effects, sweet in taste and fragrant; and especially, the dispersible tablets are easy to improve the medication compliance of patients.

The invention provides a preparation method of low-impurity Vonoprazan fumarate. A method for removing impurities A-E during preparation of Vonoprazan comprises the steps: preparing Vonoprazan hydrobromide from Vonorazan, and removing the impurities A-E which are difficult to remove by using a recrystallization purifying method, wherein the method for removing the impurities A-E during preparationof Vonoprazan has good selectivity to the impurities A-E. The preparation method of low-impurity Vonoprazan fumarate comprises the steps: performing a reaction on 5-(2-fluorophenyl)-1-(pyridyl-3-ylsulfonyl)-1H-pyrrole-3-formaldehyde and methylamine or a salt of methylamine, then performing reduction so as to obtain Vonoprazan, then preparing Vonoprazan hydrobromide, then performing salt dissociation so as to obtain Vonoprazan free alkali, preparing Vonoprazan fumarate with a purity of 99.7% or above, and then performing recrystallization refining so as to obtain Vonoprazan fumarate with a purity of 99.9% or above. The invention provides an impurity D, a preparation method of the impurity D and application of the impurity D as an impurity reference substance in Vonoprazan fumarate.

The invention discloses an improved preparation method of Vonoprazan, and particularly discloses a preparation method of a compound Vonoprazan with a structure shown in the description. According to the method, a compound 5-(2-fluorophenyl)-1H-pyrrole-3-carboxylic ester is taken as a raw material and subjected to amination with water as a solvent, a product is reduced, and Vonoprazan is prepared.The technology adopts short steps, and is low in cost, environmentally friendly and suitable for large-scale industrial production.

The invention relates to a medicinal composition for resisting helicobacter pylori. The medicinal composition comprises the following components in parts by weight: 50-500 parts of component A, 100-500 parts of component B and 5-50 parts of component C, wherein the component A is amoxicillin; the component B is selected from levofloxacin and pharmaceutically acceptable salts thereof, moxifloxacin and pharmaceutically acceptable salts thereof; the component C is selected from Vonoprazan and pharmaceutically acceptable salts thereof. The invention also provides a preparation method and application of the medicinal composition. The medicinal composition for resisting the helicobacter pylori has a strong effect of resisting the helicobacter pylori and has less adverse reaction and wide application, and the preparation method is simple and is easy to operate.

The invention discloses a preparation method of vonoprazan fumaric acid solid dispersion: dissolve vonoprazan fumaric acid and a carrier material in an organic solvent (acetone:methane=3:1), and reduce the temperature at 50 to 90°C. Pressure rotary evaporation, to obtain; the mass ratio of the fumaric acid vonoprazan to the carrier material is 1:1.5~1:10; the carrier material is selected from one of polyvinylpyrrolidone K30 and poloxamer or two. The present invention also provides a solid dispersion tablet of vonoprazan fumarate: made of solid dispersion of vonoprazan fumarate, filler, disintegrant, lubricant, wherein, the amount of filler accounts for 35%-65% of the total weight of the tablet; the dosage of the disintegrating agent is 1%-5% of the total weight of the tablet; the dosage of the lubricant is 0.5%-3% of the total weight of the tablet. The vonoprazan fumarate solid dispersion and tablet of the present invention improve the dissolution rate of vonoprazan fumarate in vitro, and improve the disadvantages of poor oral absorption and low bioavailability.

The invention discloses a preparation method of high-purity Vonoprazan fumarate, which comprises the following steps: by taking 5-(2-fluorophenyl)-1[(pyridine-3-yl)sulfonyl]-1H-pyrrole-3-formaldehyde as an initial raw material, dissolving the initial raw material in a reaction solvent I, and reacting the solution with methylamine to generate Schiff base; reacting the solution with a reducing agent, salting out the product to obtain a free alkali Vonorazan crude product, and refining the product to obtain free alkali Vonorazan; and salifying the free alkali Vonorazan and fumaric acid in a reaction solvent II, and refining the product to obtain Vonorazan fumarate, wherein the HPLC purity of the product is greater than 99.9%.

The invention discloses a detection method of Vonoprazan fumarate. The detection method comprises the following steps: using a high performance liquid chromatography instrument to detect and an area normalization method to perform quantitative analysis, and controlling chromatographic conditions to be that the chromatographic column is Agilent ZORBAX SB-phenyl; the injection volume is 5 to 10 [mu]l; the flow velocity is 0.8 to 1.2 ml/min; the column temperature is 25 to 35 DEG C; the detection wavelength is 250 to 300 nm; the mobile phase comprises a mobile phase A which is a 0.1% formic acidaqueous solution and a mobile phase B which is acetonitrile in a volume ratio of (5-70): (30-95); the diluent comprises acetonitrile and water in a volume ratio of (40-60): 50; the detector is a UV detector; the detection method of Vonoprazan fumarate, disclosed by the invention, can simply, accurately, rapidly, efficiently and reliably detect the purity and impurities of 5-(2-fluorophenyl)-N-methyl-1-(3-pyridylsulfonyl)-1H-pyrrole-3-methylamine fumarate, has very high sensitivity, is simple and convenient in operation, can realize complete separation, and further provides the basis for the research, development and quality detection of the compound.