CN102351812A - Methanesulfonic acid cinepazide crystal form III and preparation method thereof - Google Patents
Methanesulfonic acid cinepazide crystal form III and preparation method thereof Download PDFInfo
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- CN102351812A CN102351812A CN2011102683841A CN201110268384A CN102351812A CN 102351812 A CN102351812 A CN 102351812A CN 2011102683841 A CN2011102683841 A CN 2011102683841A CN 201110268384 A CN201110268384 A CN 201110268384A CN 102351812 A CN102351812 A CN 102351812A
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Abstract
The invention relates to a methanesulfonic acid cinepazide crystal form III and a preparation method thereof, and belongs to the field of chemical pharmaceutics. The water solubility of the prepared methanesulfonic acid cinepazide crystal form III is higher than that of an amorphous material, and the methanesulfonic acid cinepazide crystal form III is particularly suitable for injection, has higher chemical stability than the amorphous material, facilitates production of medicines, and storage and transportation of raw material medicines, improves the safety of the medicines and provides safe guarantee for clinical application of the medicines.
Description
This application is that denomination of invention is " methanesulfonic acid cinepazide crystal form and preparation method thereof ", and application number is dividing an application of 2008102278637 application for a patent for invention.
Technical field
The invention belongs to medical technical field, be specifically related to methanesulfonic acid cinepazide crystal form and preparation method thereof.
Background technology
Cinepazide Maleate is the maleate of cinepazide, and the formulation of going on the market in China is mainly injection liquid.Cinepazide Maleate has expansion of cerebral vascular and the dual function that promotes the neurocyte Nutrition and Metabolism, nearly treatment that began to be applied to cardiovascular and cerebrovascular in 2 years at home.Cinepazide Maleate is a calcium ion channel blocker; Get in the smooth muscle cell through stoping Ca2+ to stride film; Make vascular smooth muscle relaxation; The cerebrovascular; Coronary vasodilator and peripheral blood vessel expansion; Thereby alleviating vascular spasm; Reduce vascular resistance; Blood flow increasing; Can strengthen the effect of adenosine and cyclic monophosphate (cAMP); Reduce the oxygen consumption, can suppress the cAMP phosphodiesterase, cAMP quantity is increased; Can also improve erythrocytic snappiness and deformability; Improve its ability, reduce the viscosity of blood, microcirculation improvement through minute blood vessel; Can improve the metabolism of brain through improving cerebrovascular volume of blood flow.
Two keys that one cis-trans isomerism is arranged in the structure of cinepazide; Deposit in the process secular; Its cis isomerism body burden can obviously raise; And this cis-isomeride has bigger toxicity; Storage and transportation to medicine production, bulk drug have brought great inconvenience; And bigger to the drug safety influence, bring certain risk to clinical application.
Patent application " new pharmaceutical salts of cinepazide and preparation method thereof " (application number: obtain a kind of methanesulfonic acid cinepazide 200710096248.2), structural formula is following:
Its solubleness in water wants big than Cinepazide Maleate; Its stability is also good than Cinepazide Maleate; Be particularly suitable for processing injection liquid; The drug formulation that meets cinepazide; Though the influence of the drug safety of the above-mentioned mesylate of mentioning has reduced; But the drug safety problem still exists; The raw material methanesulfonic acid cinepazide is an amorphous powder; Unstable chemcial property; Two keys that one cis-trans isomerism is arranged in its structure are deposited in the process secular, and its cis isomerism body burden can obviously raise; And this cis-isomeride has bigger toxicity, brings certain risk to clinical application.Therefore, be necessary further to improve the stability of mesylate, make the drug safety influence drop to bottom line.
Summary of the invention
The present invention is directed to the defective in the above-mentioned field, the different crystal forms of methanesulfonic acid cinepazide is provided, its solubleness in water increases, and the raw material good stability has improved drug safety.
The preparation method of methanesulfonic acid cinepazide crystal form is provided simultaneously.
Methanesulfonic acid cinepazide crystal form I is characterized in that: use the Cu-Ka radiation, the X-ray powder diffraction of representing with 2 θ angles is 5.3 ± 0.2, and there is characteristic peak at 9.2 ± 0.2,22.8 ± 0.2 places.
Methanesulfonic acid cinepazide crystal form I, its characteristic also is: the fusing endotherm(ic)peak changes at 244 ℃ among its DSC, uses the Cu-Ka radiation; The X-ray powder diffraction of representing with 2 θ angles is 16.9 ± 0.2, and 17.2 ± 0.2,17.7 ± 0.2; 20.6 there is characteristic peak at ± 0.2,21.2 ± 0.2 places.
Methanesulfonic acid cinepazide crystal form II is characterized in that: use the Cu-Ka radiation, the X-ray powder diffraction of representing with 2 θ angles is 9.1 ± 0.2, and there is characteristic peak at 17.1 ± 0.2,22.8 ± 0.2 places.
Methanesulfonic acid cinepazide crystal form II, its characteristic also is: the fusing endotherm(ic)peak changes at 245 ℃ among its DSC, uses the Cu-Ka radiation; The X-ray powder diffraction of representing with 2 θ angles is 16.7 ± 0.2, and 17.6 ± 0.2,18.6 ± 0.2; 19.0 there is characteristic peak at ± 0.2,25.7 ± 0.2 places.
Methanesulfonic acid cinepazide crystal form III is characterized in that: be the methanesulfonic acid cinepazide dihydrate, use the Cu-Ka radiation, the X-ray powder diffraction of representing with 2 θ angles is 5.8 ± 0.2, and there is characteristic peak at 11.5 ± 0.2,17.2 ± 0.2 places.
Methanesulfonic acid cinepazide crystal form III; Its characteristic also is: be the methanesulfonic acid cinepazide dihydrate; The fusing endotherm(ic)peak changes at 246 ℃ among its DSC; Use the Cu-Ka radiation; The X-ray powder diffraction of representing with 2 θ angles is 16.4 ± 0.2, and 18.0 ± 0.2,20.2 ± 0.2; 21.7 there is characteristic peak at ± 0.2,23.6 ± 0.2 places.
The preparation method of methanesulfonic acid cinepazide crystal form I; Methanesulfonic acid cinepazide is joined methylene dichloride; Trichloromethane; Nitromethane 99Min.; Low-grade fever dissolving in one or more solvents among the DMF; Obtain crystal after the solvent evaporates; Wherein the ratio of solute and solvent is 1g: 40-80mL; Perhaps methanesulfonic acid cinepazide is joined methylene dichloride; Trichloromethane; Nitromethane 99Min.; DMF; Methyl alcohol; Low-grade fever dissolving in the ethylene glycol monomethyl ether; Again drips of solution is added to ether; Methyl tertiary butyl ether; In the acetonitrile; Separate out crystal; Wherein the ratio of solute and solvent is 1g: 10-40mL; The drips of solution added-time, the ratio of solution and solvent is 1mL: 30-60mL.
The preparation method of methanesulfonic acid cinepazide crystal form II; Methanesulfonic acid cinepazide is dissolved in methyl alcohol; Ethanol; N-propyl alcohol; Virahol; Propyl carbinol; Isopropylcarbinol; Sec-butyl alcohol; In the acetonitrile solvent one or more; Leave standstill; Get crystal after the solvent evaporates; Wherein the ratio of solute and solvent is 2g: 3-10mL; Perhaps methanesulfonic acid cinepazide is dissolved in Nitromethane 99Min.; Again drips of solution is added in the acetonitrile; Perhaps methanesulfonic acid cinepazide is dissolved in the DMSO solvent; Drips of solution is added in the mixed solvent of tetracol phenixin and ether again; Separate out crystal; Wherein the ratio of solute and solvent is 1g: 5-20mL; The drips of solution added-time, the ratio of solution and solvent is 1mL: 10-20mL.
The preparation method of methanesulfonic acid cinepazide crystal form III is dissolved in the water methanesulfonic acid cinepazide, leave standstill or add acetone after leave standstill, separate out crystal, the ratio 1g of solute and water: 4-10mL wherein, the ratio of acetone and water is 1: 5.
Methanesulfonic acid cinepazide crystal form I, II, III treat and/or prevent the application in the medicine of cardiovascular and cerebrovascular diseases in preparation.
The formulation of said medicine is pharmaceutically acceptable arbitrary formulation.
The present invention adopt patent application " new pharmaceutical salts of cinepazide and preparation method thereof " (application number: the 200710096248.2) methanesulfonic acid cinepazide for preparing of described method, it is carried out crystal formation detects and be metamict crystals, see accompanying drawing 1.Cultivate monocrystalline through single solvent and mixed solvent; And adopt the method for liquid liquid and gas-liquid diffusion diffusion to cultivate monocrystalline and powder thereof; Through test result analysis such as powder X-ray RD, monocrystalline XRD test, thermogravimetric-heating differential analysis (TGA-DSC), ultimate analyses; Discovery makes multiple crystal formation; Than metamict crystals stability crystal formation I, crystal form II and crystal form II I are arranged preferably, wherein crystal form II I has two solvent molecules.
As starting raw material, the crystallization in methylene chloride, trichloromethane, Nitromethane 99Min., DMF, methanol, methylene dichloride/ether, methyl alcohol/methyl tertiary butyl ether, DMF/ ether, ethylene glycol monomethyl ether/ether, ethylene glycol monomethyl ether/acetonitrile is crystal formation I with this product in the present invention.The X-ray powder diffraction of representing with 2 θ angles is 5.3 ± 0.2, and 9.2 ± 0.2,16.9 ± 0.2,17.2 ± 0.2; 17.7 there is characteristic peak at ± 0.2,20.6 ± 0.2,21.2 ± 0.2,22.8 ± 0.2 places; And 2 θ angles are 5.3 ± 0.2, and the characteristic peak at 9.2 ± 0.2,22.8 ± 0.2 3 places is three strongest ones peaks.Solubleness and study on the stability experiment showed, that the solubleness of crystal formation I is big slightly than raw material, and good stability is in raw material, and its DSC-TGA and ultimate analysis show that this crystal formation does not contain crystal water.
As starting raw material, the crystallization in solvent methanol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, acetonitrile, Nitromethane 99Min./acetonitrile, DMSO/ tetracol phenixin/ether is a crystal form II with this product in the present invention.The X-ray powder diffraction of representing with 2 θ angles is 9.1 ± 0.2; 16.7 ± 0.2,17.1 ± 0.2,17.6 ± 0.2; 18.6 ± 0.2; 19.0 ± 0.2,22.8 ± 0.2,25.7 ± 0.2; There is characteristic peak at the place; And 2 θ angles 9.1 ± 0.2,17.1 ± 0.2, the characteristic peak at 22.8 ± 0.2 3 places is three strongest ones peaks.Solubleness and study on the stability experiment showed, that the solubleness of crystal form II is big slightly than raw material, and good stability is in raw material, and its DSC-TGA and ultimate analysis show that this crystal formation does not contain crystal water.
As starting raw material, in aqueous solvent, the crystallization in water/acetone is crystal form II I with this product in the present invention.The X-ray powder diffraction of representing with 2 θ angles is 5.8 ± 0.2, and 11.5 ± 0.2,16.4 ± 0.2; 17.2 ± 0.2; 18.0 ± 0.2,20.2 ± 0.2,21.7 ± 0.2; 23.6 there is characteristic peak at ± 0.2 place; And 2 θ angles 5.8 ± 0.2,11.5 ± 0.2, the characteristic peak at 17.2 ± 0.2 3 places is three strongest ones peaks; Its DSC-TGA and ultimate analysis show that this crystal formation contains two crystal water.Solubleness and study on the stability experiment showed, that the solubleness of crystal form II is big slightly than raw material, and good stability is in raw material.
The crystal formation I that the present invention obtains, crystal form II, crystal form II I can be used for making all kinds of types of preparations, because the more unformed methanesulfonic acid cinepazide of its solubleness wants big, above-mentioned crystal formation is particularly suitable for preparing freeze-dried formulation, mouth collapses solution dosage etc.
Experiment through a large amount of proves; The chemical stability of methanesulfonic acid cinepazide crystal form I of the present invention, crystal form II and crystal form II I is better than unbodied methanesulfonic acid cinepazide; Under high temperature, high humidity, illumination condition; The transformation efficiency of its cis-isomeride lacks than unbodied methanesulfonic acid cinepazide; The security that has improved medicine is crystal form II especially; Cis-isomeride under its high temperature, the high humidity also reduces accordingly, and using for clinical drug provides safety control.
Description of drawings
Fig. 1 methanesulfonic acid cinepazide raw material XRD-powder diagram,
The XRD-powder diagram of Fig. 2 methanesulfonic acid cinepazide crystal form I (in methylene dichloride, separating out crystal),
The DSC-TGA figure (in methylene dichloride, separating out crystal) of Fig. 3 methanesulfonic acid cinepazide crystal form I,
The XRD-powder diagram of Fig. 4 methanesulfonic acid cinepazide crystal form II (in methyl alcohol, separating out crystal),
The DSC-TGA figure (in methyl alcohol, separating out crystal) of Fig. 5 methanesulfonic acid cinepazide crystal form II
Fig. 6 methanesulfonic acid cinepazide crystal form II single crystal diffraction figure (in methyl alcohol, separating out crystal)
The XRD-powder diagram of Fig. 7 methanesulfonic acid cinepazide crystal form III (in water, separating out crystal),
The DSC-TGA figure (in water, separating out crystal) of Fig. 8 methanesulfonic acid cinepazide crystal form III
Fig. 9 methanesulfonic acid cinepazide crystal form III single crystal diffraction figure (in water, separating out crystal)
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description.
Instrument model and test condition
XRD: various polymorphs of powder X-ray diffraction pattern using Cu? Kα-harness
By D / MAX-RB X-ray diffractometer.
TG/DSC: Japan leads Tianjin DSC-40M, DTA-40M Thermal Analysis, 10 °/min of temperature rise rate, nitrogen atmosphere, flow 40mL/min.
Ultimate analysis: moral ELEMENTAR VarioELIII.
Single crystal diffractometer: Bruker SMART APEX2
Embodiment 1 methanesulfonic acid cinepazide raw material
1.1 feedstock production
(application number: preparation method 200710096248.2), the employing type of cooling is separated out from the look crystalline powder according to patent application " new pharmaceutical salts of cinepazide and preparation method thereof ".
1.2 XRD-powder diagram
See Fig. 1, show that the raw material for preparing by above-mentioned patent is the amorphous powder.
1.3 solubility experiment
The solvent that can dissolve methanesulfonic acid cinepazide has: methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, DMF, water, ethylene glycol monomethyl ether, methylene dichloride, chloroform, acetonitrile, Nitromethane 99Min., DMSO.Wherein water, methyl alcohol, Nitromethane 99Min., ethylene glycol monomethyl ether, DMSO solvability are fabulous, and other are general.The solvent that can not dissolve methanesulfonic acid cinepazide has: the trimethyl carbinol, acetone, butanone, ethyl formate, ethyl acetate, benzene, toluene, monochloro-benzene, tetracol phenixin, normal hexane, hexanaphthene, ether, methyl tert-butyl ether, sherwood oil, tetrahydrofuran (THF), 1,4-dioxane.
2.1 preparation method
The crystallization of methanesulfonic acid cinepazide in methylene dichloride, trichloromethane, Nitromethane 99Min., DMF, methanol, methylene dichloride/ether, methyl alcohol/methyl tertiary butyl ether, DMF/ ether, ethylene glycol monomethyl ether/ether, ethylene glycol monomethyl ether/acetonitrile is crystal formation I.
Method one (is example with the methylene dichloride): under the lucifuge condition; The 0.5g methanesulfonic acid cinepazide is added in the 25mL methylene dichloride; Low-grade fever makes its dissolving, stirs 1h, filters; Leave standstill preservation; Solvent evaporates is killed after three days, and with the solid crushing, normal temperature is placed dry 6h; Collect sample, obtain methanesulfonic acid cinepazide crystal form I.
Method two (is example with the DMF/ ether): under the lucifuge condition; The 0.7g methanesulfonic acid cinepazide is added among the 20mL DMF; 30min is stirred in dissolving, and drips of solution is added in the 100mL ether; Separate out white crystalline solid; Suction filtration is drained, and dries 30min under 55 ℃ of conditions; Collect sample, obtain methanesulfonic acid cinepazide crystal form I.
Additive method: sample obtains methanesulfonic acid cinepazide crystal form I with reference to above two kinds of methods in Nitromethane 99Min., DMF, methanol, methyl alcohol/methyl tertiary butyl ether, ethylene glycol monomethyl ether/ether, DMF/ ether, the ethylene glycol monomethyl ether/acetonitrile.
2.2 XRD-powdery diffractometry test:
See Fig. 2.
Methanesulfonic acid cinepazide is separated out the 2-Theta and the I% of the XRD powdery diffractometry of crystal powder in methylene dichloride
| 2-Theta | 5.281 | 9.218 | 12.282 | 16.818 | 17.181 | 17.723 | 19.017 | 20.158 | 20.571 | 21.239 |
| I％ | 89.5 | 81.7 | 19.5 | 61 | 47.4 | 30.3 | 14.8 | 13.9 | 26.8 | 21.7 |
| 2-Theta | 21.723 | 22.769 | 23.4 | 23.936 | 24.395 | 24.962 | 25.711 | 26.524 | 28.324 | 29.08 |
| I％ | 17 | 100 | 7.1 | 7 | 8.6 | 19 | 21.2 | 14.6 | 7.8 | 15.2 |
2.3 DSC-TGA test:
See Fig. 3, DSC: having 244.00 ℃ unimodal, is the fusing endotherm(ic)peak; TGA: do not have obviously weightless before decomposing.
2.4 ultimate analysis:
The calculated value of raw material methanesulfonic acid cinepazide: N, 8.18%; H, 6.87%; C, 53.78%; S, 6.24%; Actual measured value: N, 8.21%; H, 6.88%; C, 53.86%; S, 6.74%.Methanesulfonic acid cinepazide is separated out the observed value of crystal powder: N, 8.05% in methylene dichloride; H, 6.84%; C, 53.62%; S, 6.44%.
3.1 preparation method
The crystallization of methanesulfonic acid cinepazide in methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, acetonitrile, Nitromethane 99Min./acetonitrile, DMSO/ tetracol phenixin/ether is crystal form II.
Method one (is example with methyl alcohol): under the lucifuge condition, the 2g methanesulfonic acid cinepazide is added in the 5mL methyl alcohol, the low-grade fever hydrotropy stirs 0.5h, filters, and leaves standstill preservation, places about 23 days, and solvent evaporates is killed, and collects sample, obtains methanesulfonic acid cinepazide crystal form II.
Method two (is example with DMSO/ tetracol phenixin/ether): under the lucifuge condition; The 1g methanesulfonic acid cinepazide is added among the 15mLDMSO; 30min is stirred in dissolving, drips of solution is added in the mixed solvent of 150mL tetracol phenixin and 100mL ether; Separate out white crystalline solid; Suction filtration is drained, and dries 2h under 55 ℃ of conditions; Collect sample, obtain methanesulfonic acid cinepazide crystal form II.
Additive method: the sample of ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, acetonitrile, Nitromethane 99Min./acetonitrile obtains methanesulfonic acid cinepazide crystal form II with reference to above two kinds of methods.
3.2 XRD-powdery diffractometry test:
See Fig. 4.
Methanesulfonic acid cinepazide is separated out the 2-Theta and the I% of the XRD powdery diffractometry of crystal powder in methyl alcohol
| 2-Theta | 9.121 | 14.051 | 16.618 | 17.087 | 17.634 | 18.567 | 18.955 | 20.101 | 21.202 |
| I％ | 100 | 9.8 | 40.2 | 52.7 | 32.8 | 28.7 | 39.4 | 18.8 | 11.3 |
| 2-Theta | 21.965 | 22.772 | 24.329 | 24.876 | 25.38 | 25.657 | 27.034 | 28.835 |
| I％ | 11.4 | 44.9 | 21.8 | 18.9 | 14.9 | 25.2 | 11.3 | 10.4 |
3.3 DSC-TGA test:
See Fig. 5, DSC: having 244.59 ℃ unimodal, is the fusing endotherm(ic)peak; TGA: do not have obviously weightless before decomposing.
3.4 ultimate analysis:
Methanesulfonic acid cinepazide is separated out the observed value of crystal powder: N, 7.97% in methyl alcohol; H, 6.89%; C, 53.58%; S, 6.25%.
4 monocrystalline (methyl alcohol) diffraction: see Fig. 6.
Embodiment 4 methanesulfonic acid cinepazide crystal form III (two hydrates)
4.1 preparation method
The crystallization of methanesulfonic acid cinepazide in water, water/acetone is the dihydrate of methanesulfonic acid cinepazide.
Method one (is example with water): under the lucifuge condition, the 2g methanesulfonic acid cinepazide is added in the 10mL water dissolving; And add the 5g methanesulfonic acid cinepazide; Stir 30min, filter, leave standstill and preserved 18 days; There is solid to separate out; Suction filtration is drained, and normal temperature is placed 6h; Collect sample, obtain the dihydrate of methanesulfonic acid cinepazide.
Method two (is example with water/acetone): under the lucifuge condition; The 0.3g methanesulfonic acid cinepazide is added in the 2mL water, and adds 10mL acetone, add the 0.6g methanesulfonic acid cinepazide; Stirring at normal temperature 0.5h; Filter, leave standstill and preserved 18 days, separate out solid; Suction filtration; Drain, normal temperature is placed 6h, obtains methanesulfonic acid cinepazide crystal form III.
4.2 XRD-powdery diffractometry test:
See Fig. 7.
Methanesulfonic acid cinepazide is separated out the 2-Theta and the I% of the XRD powdery diffractometry of crystal powder in water, water/acetone
| 2-Theta | 5.763 | 10.937 | 11.491 | 11.857 | 16.402 | 17.239 |
| I％ | 94.7 | 18.1 | 100 | 21.6 | 29.1 | 52.2 |
| 2-Theta | 20.22 | 20.725 | 21.716 | 22.596 | 23.615 | 26.858 |
| I％ | 36.7 | 18.3 | 48.7 | 21.7 | 30.1 | 13.4 |
4.3 DSC-TGA test:
See Fig. 8.DSC: have 125.01 ℃, 246.08 ℃ two bimodal, and previous peak is the crystal water endotherm(ic)peak of leaving away, and a back peak is the crystal melting endotherm(ic)peak; TGA: weightlessness 6.502%, calculated value: 6.555%, illustrate that hydrate crystal forms combines 2 water moleculess.
4.4 ultimate analysis:
Methanesulfonic acid cinepazide is separated out the observed value of crystal powder: N, 7.28% in water; H, 7.09%; C, 50.35%; S, 5.74%; Calculated value: N, 7.64%; H, 7.15%; C, 50.26%; S, 5.83%.
4.5 monocrystalline (water) diffraction:
See Fig. 9.Contain 2 water moleculess in the monocrystalline test shows hydrate.
Sum up
Obtain three kinds of crystal formations (crystal formation I, crystal form II, crystal form II I) of methanesulfonic acid cinepazide through above-mentioned experiment.It is to locate to have more a diffraction peak about 5.3 ° that crystal formation I compares with crystal form II at 2-Theta, and crystal form II I is two hydrates of methanesulfonic acid cinepazide, and the XRD-powdery diffractometry is obviously different with crystal formation I, II.
TGA-DSC test, ultimate analysis, monocrystalline test shows: crystal formation I, II all do not combine solvent molecule; Crystal form II I has combined 2 water moleculess.
The preparation of FORMULATION EXAMPLE 1 The compounds of this invention aseptic powder injection
1, prescription
Prescription 1
Methanesulfonic acid cinepazide crystal form I 500g
Prepare 1000 altogether
Methanesulfonic acid cinepazide crystal form II 500g
Prepare 1000 altogether
Methanesulfonic acid cinepazide crystal form III 100g
Prepare 1000 altogether
2, preparation technology:
To prepare used antibiotic glass bottle of preparation and plug etc. earlier and carry out aseptically process; Take by weighing raw material (feeding intake after the conversion) and auxiliary material by above-mentioned prescription again.Gains are placed the portioning machine packing, and pack into the amount of the gains in the vial of detection at any time.On vial, jump a queue and gland, and carry out finished product and examine entirely, subsequently the packing warehouse-in.
The preparation of FORMULATION EXAMPLE 2 The compounds of this invention dispersible tablets
1, prescription:
Prescription 1:
Prescription 2:
Prescription 3:
2, preparation technology:
Take by weighing Microcrystalline Cellulose 100g and starch 100g according to prescription, put into the boiling granulating machine and mix, water is an amount of to wherein spraying into, and stirs 15 minutes, processes particle, places pelletizing machine to carry out whole grain again the gained particle.Take by weighing Microcrystalline Cellulose 100g, sodium starch glycolate 25g, main ingredient 125g, mix the back and cross 100 mesh sieves.The learn from else's experience particle of whole grain, the powder after sieving places the abundant mixing of mixing tank with micropowder silica gel, the Magnesium Stearate of recipe quantity, and the material of getting behind the mixing carries out content detection; The sheet weight sheet of confirming according to the assay result; Finished product is examined entirely, the packing warehouse-in.
The preparation that FORMULATION EXAMPLE 3 The compounds of this invention mouths collapse the solution sheet
1, prescription:
Prescription 1:
Prescription 2:
Prescription 3:
2, preparation technology:
Take by weighing main ingredient and Microcrystalline Cellulose, N.F,USP MANNITOL (or sorbyl alcohol), sodium starch glycolate, low-substituted hydroxypropyl cellulose according to prescription; Raw material pulverizing is crossed 100 mesh sieves; The Magnesium Stearate that adds recipe quantity places fully mixing of mixing tank, and the material of getting behind the mixing carries out content detection; The sheet weight sheet of confirming according to the assay result; Finished product is examined entirely, the packing warehouse-in.
The chemical stability experiment of experimental example 1 methanesulfonic acid cinepazide crystal form
1 test sample
Test sample: methanesulfonic acid cinepazide raw material, crystal formation 1, crystal formation 2, crystal formation 3
The source: the foregoing description 1-4 makes product
2 test conditionss
2.1 high temperature test
It is an amount of to get trial-product, and putting temperature is 60 ℃ of condition held 10 days, in the 10th day sampling and measuring, and relatively after the outward appearance, test each item index and with result and comparison in 0 day.
2.2 exposure experiments to light
It is an amount of to get trial-product, and putting illumination is 4500LX condition held 10 days, in the 10th day sampling and measuring, and relatively after the outward appearance, test each item index and with result and comparison in 0 day.
2.3 high wet test
It is an amount of to get trial-product, and putting relative humidity is 75% condition held 10 days, in the 10th day sampling and measuring, and relatively after the outward appearance, test each item index and with result and comparison in 0 day.
3 test-results and evaluation
Chemical stability adopts the condition of influence factor test, inquires into the following stability at high temperature, illumination, high humidity spare.
The evaluation of 1 high-temperature stability
The test of 2 light durabilities
3 high humidity estimation of stabilitys
Each index velocity of variation compares:
Conclusion:
High temperature is investigated: crystal formation I, and II, the variation of III isomer is all lacked than amorphous raw material, and each item index does not have considerable change, and crystal form II presents the trend that isomer oppositely transforms minimizing.
Illumination is investigated: the variation of crystal form II I isomer is more obvious than crystal formation I, crystal form II, and it is obvious that the isomer of crystal formation I, III changes more amorphous raw material, and other indexs do not have considerable change.
High humidity is investigated: crystal formation I, and II, the variation of III isomer is all lacked than amorphous raw material, and crystal form II presents the trend that isomer oppositely transforms minimizing.Crystal formation I, the II moisture absorption is about 5%, and crystal form II I moisture absorption is not obvious, and 3 kinds of crystal formations all have caking phenomenon.
In general, crystal formation I, II, III stability is better than amorphous raw material, crystal form II particularly, the stability performance under high temperature, illumination, super-humid conditions is more excellent.
Experimental example 2 methanesulfonic acid cinepazide crystal form solubleness are estimated
The solubleness of methanesulfonic acid cinepazide raw material and three kinds of crystal formations
| Compound | Water (1mL, 25 ℃) | Ethanol (1mL, 25 ℃) |
| The methanesulfonic acid cinepazide raw material | 1.320g | -- |
| Methanesulfonic acid cinepazide crystal form I | 1.3469g | 0.0042g |
| Methanesulfonic acid cinepazide crystal form II | 1.3683g | 0.0015g |
| Methanesulfonic acid cinepazide crystal form III | 1.3956g | 0.0078g |
Above-mentioned experimental data finds out that three kinds of its solubleness of crystal formation that the present invention obtains are all greater than amorphous raw material.
Claims (5)
1. methanesulfonic acid cinepazide crystal form III is characterized in that: be the methanesulfonic acid cinepazide dihydrate, use the Cu-Ka radiation, the X-ray powder diffraction of representing with 2 θ angles is 5.8 ± 0.2, and there is characteristic peak at 11.5 ± 0.2,17.2 ± 0.2 places.
2. methanesulfonic acid cinepazide crystal form III as claimed in claim 1; It is characterized in that: the fusing endotherm(ic)peak changes at 246 ℃ among its DSC; Use the Cu-Ka radiation; The X-ray powder diffraction of representing with 2 θ angles is also 16.4 ± 0.2; 18.0 ± 0.2; 20.2 ± 0.2,21.7 ± 0.2, there is characteristic peak at 23.6 ± 0.2 places.
3. the preparation method of claim 1 or 2 described methanesulfonic acid cinepazide crystal form III; Methanesulfonic acid cinepazide is dissolved in the water, leave standstill or add acetone after leave standstill, separate out crystal; The ratio 1g of solute and water: 4-10mL wherein, the ratio of acetone and water is 1: 5.
4. each described methanesulfonic acid cinepazide crystal form III of claim 1-2 treats and/or prevents the application in the medicine of cardiovascular and cerebrovascular diseases in preparation.
5. application according to claim 4, the formulation of said medicine are pharmaceutically acceptable arbitrary formulation.
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| CN100584835C (en) * | 2006-04-21 | 2010-01-27 | 车冯升 | Novel medicinal salt for cinepazide and preparation method thereof |
| CN101058568A (en) * | 2006-04-21 | 2007-10-24 | 车冯升 | Novel medicinal salt for cinepazide and preparation method thereof |
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